Bug 499879 - Can't change brightness on laptop screen, see battery widget, and use power management in settings.
Summary: Can't change brightness on laptop screen, see battery widget, and use power m...
Status: RESOLVED FIXED
Alias: None
Product: plasmashell
Classification: Plasma
Component: Power management & brightness (show other bugs)
Version: git-stable-Plasma/6.3
Platform: Fedora RPMs Linux
: NOR major
Target Milestone: 1.0
Assignee: Plasma Bugs List
URL:
Keywords:
: 499896 (view as bug list)
Depends on:
Blocks:
 
Reported: 2025-02-12 13:40 UTC by Carlos Guzman
Modified: 2025-02-14 09:16 UTC (History)
6 users (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:


Attachments
No Power Management (487.79 KB, image/png)
2025-02-12 13:40 UTC, Carlos Guzman
Details
JournalCTL logs (1.99 MB, text/x-log)
2025-02-12 18:45 UTC, Carlos Guzman
Details

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Description Carlos Guzman 2025-02-12 13:40:01 UTC
Created attachment 178182 [details]
No Power Management

Just upgraded to 

Plasma 6.3 and I can't adjust my screen brightness, see my battery percentage or power profile, and in the settings I can't see the power management section. I provided screenshots.
Comment 1 Nicolas Fella 2025-02-12 14:05:37 UTC
Please post the output of "systemctl --user status plasma-powerdevil.service"
Comment 2 Carlos Guzman 2025-02-12 14:13:07 UTC
(In reply to Nicolas Fella from comment #1)
> Please post the output of "systemctl --user status plasma-powerdevil.service"

> × plasma-powerdevil.service - Powerdevil
>     Loaded: loaded (/usr/lib/systemd/user/plasma-powerdevil.service; static)
>    Drop-In: /usr/lib/systemd/user/service.d
>             └─10-timeout-abort.conf
>             /home/guzman.109/.config/systemd/user/plasma-powerdevil.service.d
>             └─override.conf
>    Active: failed (Result: exit-code) since Wed 2025-02-12 08:16:59 EST; 52min ago
>   Duration: 25ms
> Invocation: 6c2b4f6032264c18b2899161b3045ce4
>    Process: 3488 ExecStart=/usr/libexec/org_kde_powerdevil (code=exited, status=255/EXCEPTION)
>  Main PID: 3488 (code=exited, status=255/EXCEPTION)
>Feb 12 08:16:59 fedora systemd[1956]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 5.
>Feb 12 08:16:59 fedora systemd[1956]: plasma-powerdevil.service: Start request repeated too quickly.
>Feb 12 08:16:59 fedora systemd[1956]: plasma-powerdevil.service: Failed with result 'exit-code'.
>Feb 12 08:16:59 fedora systemd[1956]: Failed to start plasma-powerdevil.service - Powerdevil.
Comment 3 Nicolas Fella 2025-02-12 14:19:03 UTC
Thanks.

You have a drop-in for powerdevil in /home/guzman.109/.config/systemd/user/plasma-powerdevil.service.d/override.conf

What does that do?
Comment 4 Carlos Guzman 2025-02-12 17:52:18 UTC
(In reply to Nicolas Fella from comment #3)
> Thanks.
> 
> You have a drop-in for powerdevil in
> /home/guzman.109/.config/systemd/user/plasma-powerdevil.service.d/override.
> conf
> 
> What does that do?

It just does this 
> Environment="POWERDEVIL_NO_DDCUTIL=1
Comment 5 Nicolas Fella 2025-02-12 18:08:52 UTC
Okay, thanks. I don't think that's related to this issue
Comment 6 Nicolas Fella 2025-02-12 18:22:28 UTC
Can you please attach the output of "journalctl --no-pager -b --user-unit=plasma-powerdevil"?
Comment 7 Pavel Dobiáš 2025-02-12 18:44:00 UTC
(In reply to Nicolas Fella from comment #6)
> Can you please attach the output of "journalctl --no-pager -b
> --user-unit=plasma-powerdevil"?

Here you can see my output:
```
Feb 12 18:04:32 fedora systemd[2669]: Starting plasma-powerdevil.service - Powerdevil...
Feb 12 18:04:32 fedora org_kde_powerdevil[3471]: setHighDpiScaleFactorRoundingPolicy must be called before creating the QGuiApplication instance
Feb 12 18:04:33 fedora org_kde_powerdevil[3471]: Initializing libddcutil.  ddcutil version: 2.1.2, shared library: /usr/lib64/libddcutil.so.5.1.1
Feb 12 18:04:33 fedora org_kde_powerdevil[3471]: Options passed from client:
Feb 12 18:04:33 fedora org_kde_powerdevil[3471]: Applying combined options:
Feb 12 18:04:34 fedora org_kde_powerdevil[3471]: Library initialization complete.
Feb 12 18:04:34 fedora org_kde_powerdevil[3471]: Watch thread started
Feb 12 18:04:35 fedora systemd[2669]: Started plasma-powerdevil.service - Powerdevil.
Feb 12 18:04:35 fedora org_kde_powerdevil[3471]: org.kde.powerdevil: Handle button events action could not check for screen configuration
Feb 12 18:04:35 fedora org_kde_powerdevil[3471]: wl_display#1: error 1: invalid method 5, object kde_external_brightness_device_v1#43
Feb 12 18:04:35 fedora org_kde_powerdevil[3471]: The Wayland connection experienced a fatal error: Invalid argument
Feb 12 18:04:35 fedora systemd[2669]: plasma-powerdevil.service: Main process exited, code=exited, status=255/EXCEPTION
Feb 12 18:04:35 fedora systemd[2669]: plasma-powerdevil.service: Failed with result 'exit-code'.
Feb 12 18:04:35 fedora systemd[2669]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 1.
Feb 12 18:04:35 fedora systemd[2669]: Starting plasma-powerdevil.service - Powerdevil...
Feb 12 18:04:35 fedora org_kde_powerdevil[3891]: setHighDpiScaleFactorRoundingPolicy must be called before creating the QGuiApplication instance
Feb 12 18:04:35 fedora org_kde_powerdevil[3891]: Initializing libddcutil.  ddcutil version: 2.1.2, shared library: /usr/lib64/libddcutil.so.5.1.1
Feb 12 18:04:35 fedora org_kde_powerdevil[3891]: Options passed from client:
Feb 12 18:04:35 fedora org_kde_powerdevil[3891]: Applying combined options:
Feb 12 18:04:37 fedora org_kde_powerdevil[3891]: Library initialization complete.
Feb 12 18:04:37 fedora org_kde_powerdevil[3891]: Watch thread started
Feb 12 18:04:37 fedora systemd[2669]: Started plasma-powerdevil.service - Powerdevil.
Feb 12 18:04:37 fedora org_kde_powerdevil[3891]: org.kde.powerdevil: Handle button events action could not check for screen configuration
Feb 12 18:04:37 fedora org_kde_powerdevil[3891]: wl_display#1: error 1: invalid method 5, object kde_external_brightness_device_v1#43
Feb 12 18:04:37 fedora org_kde_powerdevil[3891]: The Wayland connection experienced a fatal error: Invalid argument
Feb 12 18:04:37 fedora systemd[2669]: plasma-powerdevil.service: Main process exited, code=exited, status=255/EXCEPTION
Feb 12 18:04:37 fedora systemd[2669]: plasma-powerdevil.service: Failed with result 'exit-code'.
Feb 12 18:04:37 fedora systemd[2669]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 2.
Feb 12 18:04:37 fedora systemd[2669]: Starting plasma-powerdevil.service - Powerdevil...
Feb 12 18:04:37 fedora org_kde_powerdevil[4298]: setHighDpiScaleFactorRoundingPolicy must be called before creating the QGuiApplication instance
Feb 12 18:04:37 fedora org_kde_powerdevil[4298]: Initializing libddcutil.  ddcutil version: 2.1.2, shared library: /usr/lib64/libddcutil.so.5.1.1
Feb 12 18:04:37 fedora org_kde_powerdevil[4298]: Options passed from client:
Feb 12 18:04:37 fedora org_kde_powerdevil[4298]: Applying combined options:
Feb 12 18:04:39 fedora org_kde_powerdevil[4298]: Library initialization complete.
Feb 12 18:04:39 fedora org_kde_powerdevil[4298]: Watch thread started
Feb 12 18:04:39 fedora systemd[2669]: Started plasma-powerdevil.service - Powerdevil.
Feb 12 18:04:39 fedora org_kde_powerdevil[4298]: org.kde.powerdevil: Handle button events action could not check for screen configuration
Feb 12 18:04:39 fedora org_kde_powerdevil[4298]: wl_display#1: error 1: invalid method 5, object kde_external_brightness_device_v1#43
Feb 12 18:04:39 fedora org_kde_powerdevil[4298]: The Wayland connection experienced a fatal error: Invalid argument
Feb 12 18:04:39 fedora systemd[2669]: plasma-powerdevil.service: Main process exited, code=exited, status=255/EXCEPTION
Feb 12 18:04:39 fedora systemd[2669]: plasma-powerdevil.service: Failed with result 'exit-code'.
Feb 12 18:04:39 fedora systemd[2669]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 3.
Feb 12 18:04:39 fedora systemd[2669]: Starting plasma-powerdevil.service - Powerdevil...
Feb 12 18:04:39 fedora org_kde_powerdevil[4388]: setHighDpiScaleFactorRoundingPolicy must be called before creating the QGuiApplication instance
Feb 12 18:04:39 fedora org_kde_powerdevil[4388]: Initializing libddcutil.  ddcutil version: 2.1.2, shared library: /usr/lib64/libddcutil.so.5.1.1
Feb 12 18:04:39 fedora org_kde_powerdevil[4388]: Options passed from client:
Feb 12 18:04:39 fedora org_kde_powerdevil[4388]: Applying combined options:
Feb 12 18:04:41 fedora org_kde_powerdevil[4388]: Library initialization complete.
Feb 12 18:04:41 fedora org_kde_powerdevil[4388]: Watch thread started
Feb 12 18:04:41 fedora systemd[2669]: Started plasma-powerdevil.service - Powerdevil.
Feb 12 18:04:41 fedora org_kde_powerdevil[4388]: org.kde.powerdevil: Handle button events action could not check for screen configuration
Feb 12 18:04:41 fedora org_kde_powerdevil[4388]: wl_display#1: error 1: invalid method 5, object kde_external_brightness_device_v1#43
Feb 12 18:04:41 fedora org_kde_powerdevil[4388]: The Wayland connection experienced a fatal error: Invalid argument
Feb 12 18:04:41 fedora systemd[2669]: plasma-powerdevil.service: Main process exited, code=exited, status=255/EXCEPTION
Feb 12 18:04:41 fedora systemd[2669]: plasma-powerdevil.service: Failed with result 'exit-code'.
Feb 12 18:04:41 fedora systemd[2669]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 4.
Feb 12 18:04:41 fedora systemd[2669]: Starting plasma-powerdevil.service - Powerdevil...
Feb 12 18:04:41 fedora org_kde_powerdevil[4495]: setHighDpiScaleFactorRoundingPolicy must be called before creating the QGuiApplication instance
Feb 12 18:04:42 fedora org_kde_powerdevil[4495]: Initializing libddcutil.  ddcutil version: 2.1.2, shared library: /usr/lib64/libddcutil.so.5.1.1
Feb 12 18:04:42 fedora org_kde_powerdevil[4495]: Options passed from client:
Feb 12 18:04:42 fedora org_kde_powerdevil[4495]: Applying combined options:
Feb 12 18:04:43 fedora org_kde_powerdevil[4495]: Library initialization complete.
Feb 12 18:04:43 fedora org_kde_powerdevil[4495]: Watch thread started
Feb 12 18:04:43 fedora systemd[2669]: Started plasma-powerdevil.service - Powerdevil.
Feb 12 18:04:43 fedora org_kde_powerdevil[4495]: org.kde.powerdevil: Handle button events action could not check for screen configuration
Feb 12 18:04:43 fedora org_kde_powerdevil[4495]: wl_display#1: error 1: invalid method 5, object kde_external_brightness_device_v1#43
Feb 12 18:04:43 fedora org_kde_powerdevil[4495]: The Wayland connection experienced a fatal error: Invalid argument
Feb 12 18:04:43 fedora systemd[2669]: plasma-powerdevil.service: Main process exited, code=exited, status=255/EXCEPTION
Feb 12 18:04:43 fedora systemd[2669]: plasma-powerdevil.service: Failed with result 'exit-code'.
Feb 12 18:04:43 fedora systemd[2669]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 5.
Feb 12 18:04:43 fedora systemd[2669]: Starting plasma-powerdevil.service - Powerdevil...
Feb 12 18:04:43 fedora org_kde_powerdevil[4593]: setHighDpiScaleFactorRoundingPolicy must be called before creating the QGuiApplication instance
Feb 12 18:04:44 fedora org_kde_powerdevil[4593]: Initializing libddcutil.  ddcutil version: 2.1.2, shared library: /usr/lib64/libddcutil.so.5.1.1
Feb 12 18:04:44 fedora org_kde_powerdevil[4593]: Options passed from client:
Feb 12 18:04:44 fedora org_kde_powerdevil[4593]: Applying combined options:
Feb 12 18:04:45 fedora org_kde_powerdevil[4593]: Library initialization complete.
Feb 12 18:04:45 fedora org_kde_powerdevil[4593]: Watch thread started
Feb 12 18:04:45 fedora systemd[2669]: Started plasma-powerdevil.service - Powerdevil.
Feb 12 18:04:45 fedora org_kde_powerdevil[4593]: org.kde.powerdevil: Handle button events action could not check for screen configuration
Feb 12 18:04:45 fedora org_kde_powerdevil[4593]: wl_display#1: error 1: invalid method 5, object kde_external_brightness_device_v1#43
Feb 12 18:04:45 fedora org_kde_powerdevil[4593]: The Wayland connection experienced a fatal error: Invalid argument
Feb 12 18:04:45 fedora systemd[2669]: plasma-powerdevil.service: Main process exited, code=exited, status=255/EXCEPTION
Feb 12 18:04:45 fedora systemd[2669]: plasma-powerdevil.service: Failed with result 'exit-code'.
Feb 12 18:04:46 fedora systemd[2669]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 6.
Feb 12 18:04:46 fedora systemd[2669]: Starting plasma-powerdevil.service - Powerdevil...
Feb 12 18:04:46 fedora org_kde_powerdevil[4689]: setHighDpiScaleFactorRoundingPolicy must be called before creating the QGuiApplication instance
Feb 12 18:04:46 fedora org_kde_powerdevil[4689]: Initializing libddcutil.  ddcutil version: 2.1.2, shared library: /usr/lib64/libddcutil.so.5.1.1
Feb 12 18:04:46 fedora org_kde_powerdevil[4689]: Options passed from client:
Feb 12 18:04:46 fedora org_kde_powerdevil[4689]: Applying combined options:
Feb 12 18:04:47 fedora org_kde_powerdevil[4689]: Library initialization complete.
Feb 12 18:04:47 fedora org_kde_powerdevil[4689]: Watch thread started
Feb 12 18:04:48 fedora systemd[2669]: Started plasma-powerdevil.service - Powerdevil.
Feb 12 18:04:48 fedora org_kde_powerdevil[4689]: org.kde.powerdevil: Handle button events action could not check for screen configuration
Feb 12 18:04:48 fedora org_kde_powerdevil[4689]: wl_display#1: error 1: invalid method 5, object kde_external_brightness_device_v1#43
Feb 12 18:04:48 fedora org_kde_powerdevil[4689]: The Wayland connection experienced a fatal error: Invalid argument
Feb 12 18:04:48 fedora systemd[2669]: plasma-powerdevil.service: Main process exited, code=exited, status=255/EXCEPTION
Feb 12 18:04:48 fedora systemd[2669]: plasma-powerdevil.service: Failed with result 'exit-code'.
Feb 12 18:04:48 fedora systemd[2669]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 7.
Feb 12 18:04:48 fedora systemd[2669]: Starting plasma-powerdevil.service - Powerdevil...
Feb 12 18:04:48 fedora org_kde_powerdevil[4772]: setHighDpiScaleFactorRoundingPolicy must be called before creating the QGuiApplication instance
Feb 12 18:04:48 fedora org_kde_powerdevil[4772]: Initializing libddcutil.  ddcutil version: 2.1.2, shared library: /usr/lib64/libddcutil.so.5.1.1
Feb 12 18:04:48 fedora org_kde_powerdevil[4772]: Options passed from client:
Feb 12 18:04:48 fedora org_kde_powerdevil[4772]: Applying combined options:
Feb 12 18:04:49 fedora org_kde_powerdevil[4772]: Library initialization complete.
Feb 12 18:04:49 fedora org_kde_powerdevil[4772]: Watch thread started
Feb 12 18:04:49 fedora systemd[2669]: Started plasma-powerdevil.service - Powerdevil.
Feb 12 18:04:49 fedora org_kde_powerdevil[4772]: org.kde.powerdevil: Handle button events action could not check for screen configuration
Feb 12 18:04:49 fedora org_kde_powerdevil[4772]: wl_display#1: error 1: invalid method 5, object kde_external_brightness_device_v1#43
Feb 12 18:04:49 fedora org_kde_powerdevil[4772]: The Wayland connection experienced a fatal error: Invalid argument
Feb 12 18:04:49 fedora systemd[2669]: plasma-powerdevil.service: Main process exited, code=exited, status=255/EXCEPTION
Feb 12 18:04:49 fedora systemd[2669]: plasma-powerdevil.service: Failed with result 'exit-code'.
Feb 12 18:04:50 fedora systemd[2669]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 8.
Feb 12 18:04:50 fedora systemd[2669]: Starting plasma-powerdevil.service - Powerdevil...
Feb 12 18:04:50 fedora org_kde_powerdevil[4865]: setHighDpiScaleFactorRoundingPolicy must be called before creating the QGuiApplication instance
Feb 12 18:04:50 fedora org_kde_powerdevil[4865]: Initializing libddcutil.  ddcutil version: 2.1.2, shared library: /usr/lib64/libddcutil.so.5.1.1
Feb 12 18:04:50 fedora org_kde_powerdevil[4865]: Options passed from client:
Feb 12 18:04:50 fedora org_kde_powerdevil[4865]: Applying combined options:
Feb 12 18:04:51 fedora org_kde_powerdevil[4865]: Library initialization complete.
Feb 12 18:04:51 fedora org_kde_powerdevil[4865]: Watch thread started
Feb 12 18:04:52 fedora systemd[2669]: Started plasma-powerdevil.service - Powerdevil.
Feb 12 18:04:52 fedora org_kde_powerdevil[4865]: org.kde.powerdevil: Handle button events action could not check for screen configuration
Feb 12 18:04:52 fedora org_kde_powerdevil[4865]: wl_display#1: error 1: invalid method 5, object kde_external_brightness_device_v1#43
Feb 12 18:04:52 fedora org_kde_powerdevil[4865]: The Wayland connection experienced a fatal error: Invalid argument
Feb 12 18:04:52 fedora systemd[2669]: plasma-powerdevil.service: Main process exited, code=exited, status=255/EXCEPTION
Feb 12 18:04:52 fedora systemd[2669]: plasma-powerdevil.service: Failed with result 'exit-code'.
Feb 12 18:04:52 fedora systemd[2669]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 9.
Feb 12 18:04:52 fedora systemd[2669]: Starting plasma-powerdevil.service - Powerdevil...
Feb 12 18:04:52 fedora org_kde_powerdevil[4980]: setHighDpiScaleFactorRoundingPolicy must be called before creating the QGuiApplication instance
Feb 12 18:04:52 fedora org_kde_powerdevil[4980]: Initializing libddcutil.  ddcutil version: 2.1.2, shared library: /usr/lib64/libddcutil.so.5.1.1
Feb 12 18:04:52 fedora org_kde_powerdevil[4980]: Options passed from client:
Feb 12 18:04:52 fedora org_kde_powerdevil[4980]: Applying combined options:
Feb 12 18:04:53 fedora org_kde_powerdevil[4980]: Library initialization complete.
Feb 12 18:04:53 fedora org_kde_powerdevil[4980]: Watch thread started
Feb 12 18:04:54 fedora systemd[2669]: Started plasma-powerdevil.service - Powerdevil.
Feb 12 18:04:54 fedora org_kde_powerdevil[4980]: org.kde.powerdevil: Handle button events action could not check for screen configuration
Feb 12 18:04:54 fedora org_kde_powerdevil[4980]: wl_display#1: error 1: invalid method 5, object kde_external_brightness_device_v1#43
Feb 12 18:04:54 fedora org_kde_powerdevil[4980]: The Wayland connection experienced a fatal error: Invalid argument
Feb 12 18:04:54 fedora systemd[2669]: plasma-powerdevil.service: Main process exited, code=exited, status=255/EXCEPTION
Feb 12 18:04:54 fedora systemd[2669]: plasma-powerdevil.service: Failed with result 'exit-code'.
Feb 12 18:04:54 fedora systemd[2669]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 10.
Feb 12 18:04:54 fedora systemd[2669]: Starting plasma-powerdevil.service - Powerdevil...
Feb 12 18:04:54 fedora org_kde_powerdevil[5067]: setHighDpiScaleFactorRoundingPolicy must be called before creating the QGuiApplication instance
Feb 12 18:04:54 fedora org_kde_powerdevil[5067]: Initializing libddcutil.  ddcutil version: 2.1.2, shared library: /usr/lib64/libddcutil.so.5.1.1
Feb 12 18:04:54 fedora org_kde_powerdevil[5067]: Options passed from client:
Feb 12 18:04:54 fedora org_kde_powerdevil[5067]: Applying combined options:
Feb 12 18:04:55 fedora org_kde_powerdevil[5067]: Library initialization complete.
Feb 12 18:04:55 fedora org_kde_powerdevil[5067]: Watch thread started
Feb 12 18:04:56 fedora systemd[2669]: Started plasma-powerdevil.service - Powerdevil.
Feb 12 18:04:56 fedora org_kde_powerdevil[5067]: org.kde.powerdevil: Handle button events action could not check for screen configuration
Feb 12 18:04:56 fedora org_kde_powerdevil[5067]: wl_display#1: error 1: invalid method 5, object kde_external_brightness_device_v1#43
Feb 12 18:04:56 fedora org_kde_powerdevil[5067]: The Wayland connection experienced a fatal error: Invalid argument
Feb 12 18:04:56 fedora systemd[2669]: plasma-powerdevil.service: Main process exited, code=exited, status=255/EXCEPTION
Feb 12 18:04:56 fedora systemd[2669]: plasma-powerdevil.service: Failed with result 'exit-code'.
Feb 12 18:04:56 fedora systemd[2669]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 11.
Feb 12 18:04:56 fedora systemd[2669]: Starting plasma-powerdevil.service - Powerdevil...
Feb 12 18:04:56 fedora org_kde_powerdevil[5162]: setHighDpiScaleFactorRoundingPolicy must be called before creating the QGuiApplication instance
Feb 12 18:04:56 fedora org_kde_powerdevil[5162]: Initializing libddcutil.  ddcutil version: 2.1.2, shared library: /usr/lib64/libddcutil.so.5.1.1
Feb 12 18:04:56 fedora org_kde_powerdevil[5162]: Options passed from client:
Feb 12 18:04:56 fedora org_kde_powerdevil[5162]: Applying combined options:
Feb 12 18:04:58 fedora org_kde_powerdevil[5162]: Library initialization complete.
Feb 12 18:04:58 fedora org_kde_powerdevil[5162]: Watch thread started
Feb 12 18:04:58 fedora systemd[2669]: Started plasma-powerdevil.service - Powerdevil.
Feb 12 18:04:58 fedora org_kde_powerdevil[5162]: org.kde.powerdevil: Handle button events action could not check for screen configuration
Feb 12 18:04:58 fedora org_kde_powerdevil[5162]: wl_display#1: error 1: invalid method 5, object kde_external_brightness_device_v1#43
Feb 12 18:04:58 fedora org_kde_powerdevil[5162]: The Wayland connection experienced a fatal error: Invalid argument
Feb 12 18:04:58 fedora systemd[2669]: plasma-powerdevil.service: Main process exited, code=exited, status=255/EXCEPTION
Feb 12 18:04:58 fedora systemd[2669]: plasma-powerdevil.service: Failed with result 'exit-code'.
Feb 12 18:04:58 fedora systemd[2669]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 12.
Feb 12 18:04:58 fedora systemd[2669]: Starting plasma-powerdevil.service - Powerdevil...
Feb 12 18:04:58 fedora org_kde_powerdevil[5263]: setHighDpiScaleFactorRoundingPolicy must be called before creating the QGuiApplication instance
Feb 12 18:04:58 fedora org_kde_powerdevil[5263]: Initializing libddcutil.  ddcutil version: 2.1.2, shared library: /usr/lib64/libddcutil.so.5.1.1
Feb 12 18:04:58 fedora org_kde_powerdevil[5263]: Options passed from client:
Feb 12 18:04:58 fedora org_kde_powerdevil[5263]: Applying combined options:
Feb 12 18:05:00 fedora org_kde_powerdevil[5263]: Library initialization complete.
Feb 12 18:05:00 fedora org_kde_powerdevil[5263]: Watch thread started
Feb 12 18:05:00 fedora systemd[2669]: Started plasma-powerdevil.service - Powerdevil.
Feb 12 18:05:00 fedora org_kde_powerdevil[5263]: org.kde.powerdevil: Handle button events action could not check for screen configuration
Feb 12 18:05:00 fedora org_kde_powerdevil[5263]: wl_display#1: error 1: invalid method 5, object kde_external_brightness_device_v1#43
Feb 12 18:05:00 fedora org_kde_powerdevil[5263]: The Wayland connection experienced a fatal error: Invalid argument
Feb 12 18:05:00 fedora systemd[2669]: plasma-powerdevil.service: Main process exited, code=exited, status=255/EXCEPTION
Feb 12 18:05:00 fedora systemd[2669]: plasma-powerdevil.service: Failed with result 'exit-code'.
Feb 12 18:05:00 fedora systemd[2669]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 13.
Feb 12 18:05:00 fedora systemd[2669]: Starting plasma-powerdevil.service - Powerdevil...
Feb 12 18:05:00 fedora org_kde_powerdevil[5351]: setHighDpiScaleFactorRoundingPolicy must be called before creating the QGuiApplication instance
Feb 12 18:05:00 fedora org_kde_powerdevil[5351]: Initializing libddcutil.  ddcutil version: 2.1.2, shared library: /usr/lib64/libddcutil.so.5.1.1
Feb 12 18:05:00 fedora org_kde_powerdevil[5351]: Options passed from client:
Feb 12 18:05:00 fedora org_kde_powerdevil[5351]: Applying combined options:
Feb 12 18:05:02 fedora org_kde_powerdevil[5351]: Library initialization complete.
Feb 12 18:05:02 fedora org_kde_powerdevil[5351]: Watch thread started
Feb 12 18:05:02 fedora systemd[2669]: Started plasma-powerdevil.service - Powerdevil.
Feb 12 18:05:02 fedora org_kde_powerdevil[5351]: org.kde.powerdevil: Handle button events action could not check for screen configuration
Feb 12 18:05:02 fedora org_kde_powerdevil[5351]: wl_display#1: error 1: invalid method 5, object kde_external_brightness_device_v1#43
Feb 12 18:05:02 fedora org_kde_powerdevil[5351]: The Wayland connection experienced a fatal error: Invalid argument
Feb 12 18:05:02 fedora systemd[2669]: plasma-powerdevil.service: Main process exited, code=exited, status=255/EXCEPTION
Feb 12 18:05:02 fedora systemd[2669]: plasma-powerdevil.service: Failed with result 'exit-code'.
Feb 12 18:05:02 fedora systemd[2669]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 14.
Feb 12 18:05:02 fedora systemd[2669]: Starting plasma-powerdevil.service - Powerdevil...
Feb 12 18:05:02 fedora org_kde_powerdevil[5439]: setHighDpiScaleFactorRoundingPolicy must be called before creating the QGuiApplication instance
Feb 12 18:05:02 fedora org_kde_powerdevil[5439]: Initializing libddcutil.  ddcutil version: 2.1.2, shared library: /usr/lib64/libddcutil.so.5.1.1
Feb 12 18:05:02 fedora org_kde_powerdevil[5439]: Options passed from client:
Feb 12 18:05:02 fedora org_kde_powerdevil[5439]: Applying combined options:
Feb 12 18:05:04 fedora org_kde_powerdevil[5439]: Library initialization complete.
Feb 12 18:05:04 fedora org_kde_powerdevil[5439]: Watch thread started
Feb 12 18:05:04 fedora systemd[2669]: Started plasma-powerdevil.service - Powerdevil.
Feb 12 18:05:04 fedora org_kde_powerdevil[5439]: org.kde.powerdevil: Handle button events action could not check for screen configuration
Feb 12 18:05:04 fedora org_kde_powerdevil[5439]: wl_display#1: error 1: invalid method 5, object kde_external_brightness_device_v1#43
Feb 12 18:05:04 fedora org_kde_powerdevil[5439]: The Wayland connection experienced a fatal error: Invalid argument
Feb 12 18:05:04 fedora systemd[2669]: plasma-powerdevil.service: Main process exited, code=exited, status=255/EXCEPTION
Feb 12 18:05:04 fedora systemd[2669]: plasma-powerdevil.service: Failed with result 'exit-code'.
Feb 12 18:05:04 fedora systemd[2669]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 15.
Feb 12 18:05:04 fedora systemd[2669]: Starting plasma-powerdevil.service - Powerdevil...
Feb 12 18:05:04 fedora org_kde_powerdevil[5529]: setHighDpiScaleFactorRoundingPolicy must be called before creating the QGuiApplication instance
Feb 12 18:05:04 fedora org_kde_powerdevil[5529]: Initializing libddcutil.  ddcutil version: 2.1.2, shared library: /usr/lib64/libddcutil.so.5.1.1
Feb 12 18:05:04 fedora org_kde_powerdevil[5529]: Options passed from client:
Feb 12 18:05:04 fedora org_kde_powerdevil[5529]: Applying combined options:
Feb 12 18:05:06 fedora org_kde_powerdevil[5529]: Library initialization complete.
Feb 12 18:05:06 fedora org_kde_powerdevil[5529]: Watch thread started
Feb 12 18:05:06 fedora systemd[2669]: Started plasma-powerdevil.service - Powerdevil.
Feb 12 18:05:06 fedora org_kde_powerdevil[5529]: org.kde.powerdevil: Handle button events action could not check for screen configuration
Feb 12 18:05:06 fedora org_kde_powerdevil[5529]: wl_display#1: error 1: invalid method 5, object kde_external_brightness_device_v1#43
Feb 12 18:05:06 fedora org_kde_powerdevil[5529]: The Wayland connection experienced a fatal error: Invalid argument
Feb 12 18:05:06 fedora systemd[2669]: plasma-powerdevil.service: Main process exited, code=exited, status=255/EXCEPTION
Feb 12 18:05:06 fedora systemd[2669]: plasma-powerdevil.service: Failed with result 'exit-code'.
Feb 12 18:05:06 fedora systemd[2669]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 16.
Feb 12 18:05:06 fedora systemd[2669]: Starting plasma-powerdevil.service - Powerdevil...
Feb 12 18:05:06 fedora org_kde_powerdevil[5616]: setHighDpiScaleFactorRoundingPolicy must be called before creating the QGuiApplication instance
Feb 12 18:05:07 fedora org_kde_powerdevil[5616]: Initializing libddcutil.  ddcutil version: 2.1.2, shared library: /usr/lib64/libddcutil.so.5.1.1
Feb 12 18:05:07 fedora org_kde_powerdevil[5616]: Options passed from client:
Feb 12 18:05:07 fedora org_kde_powerdevil[5616]: Applying combined options:
Feb 12 18:05:08 fedora org_kde_powerdevil[5616]: Library initialization complete.
Feb 12 18:05:08 fedora org_kde_powerdevil[5616]: Watch thread started
Feb 12 18:05:08 fedora systemd[2669]: Started plasma-powerdevil.service - Powerdevil.
Feb 12 18:05:08 fedora org_kde_powerdevil[5616]: org.kde.powerdevil: Handle button events action could not check for screen configuration
Feb 12 18:05:08 fedora org_kde_powerdevil[5616]: wl_display#1: error 1: invalid method 5, object kde_external_brightness_device_v1#43
Feb 12 18:05:08 fedora org_kde_powerdevil[5616]: The Wayland connection experienced a fatal error: Invalid argument
Feb 12 18:05:08 fedora systemd[2669]: plasma-powerdevil.service: Main process exited, code=exited, status=255/EXCEPTION
Feb 12 18:05:08 fedora systemd[2669]: plasma-powerdevil.service: Failed with result 'exit-code'.
Feb 12 18:05:09 fedora systemd[2669]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 17.
Feb 12 18:05:09 fedora systemd[2669]: Starting plasma-powerdevil.service - Powerdevil...
Feb 12 18:05:09 fedora org_kde_powerdevil[5703]: setHighDpiScaleFactorRoundingPolicy must be called before creating the QGuiApplication instance
Feb 12 18:05:09 fedora org_kde_powerdevil[5703]: Initializing libddcutil.  ddcutil version: 2.1.2, shared library: /usr/lib64/libddcutil.so.5.1.1
Feb 12 18:05:09 fedora org_kde_powerdevil[5703]: Options passed from client:
Feb 12 18:05:09 fedora org_kde_powerdevil[5703]: Applying combined options:
Feb 12 18:05:10 fedora org_kde_powerdevil[5703]: Library initialization complete.
Feb 12 18:05:10 fedora org_kde_powerdevil[5703]: Watch thread started
Feb 12 18:05:10 fedora systemd[2669]: Started plasma-powerdevil.service - Powerdevil.
Feb 12 18:05:10 fedora org_kde_powerdevil[5703]: org.kde.powerdevil: Handle button events action could not check for screen configuration
Feb 12 18:05:10 fedora org_kde_powerdevil[5703]: wl_display#1: error 1: invalid method 5, object kde_external_brightness_device_v1#43
Feb 12 18:05:10 fedora org_kde_powerdevil[5703]: The Wayland connection experienced a fatal error: Invalid argument
Feb 12 18:05:10 fedora systemd[2669]: plasma-powerdevil.service: Main process exited, code=exited, status=255/EXCEPTION
Feb 12 18:05:10 fedora systemd[2669]: plasma-powerdevil.service: Failed with result 'exit-code'.
Feb 12 18:05:11 fedora systemd[2669]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 18.
Feb 12 18:05:11 fedora systemd[2669]: Starting plasma-powerdevil.service - Powerdevil...
Feb 12 18:05:11 fedora org_kde_powerdevil[5987]: setHighDpiScaleFactorRoundingPolicy must be called before creating the QGuiApplication instance
Feb 12 18:05:11 fedora org_kde_powerdevil[5987]: Initializing libddcutil.  ddcutil version: 2.1.2, shared library: /usr/lib64/libddcutil.so.5.1.1
Feb 12 18:05:11 fedora org_kde_powerdevil[5987]: Options passed from client:
Feb 12 18:05:11 fedora org_kde_powerdevil[5987]: Applying combined options:
Feb 12 18:05:12 fedora org_kde_powerdevil[5987]: Library initialization complete.
Feb 12 18:05:12 fedora org_kde_powerdevil[5987]: Watch thread started
Feb 12 18:05:12 fedora systemd[2669]: Started plasma-powerdevil.service - Powerdevil.
Feb 12 18:05:12 fedora org_kde_powerdevil[5987]: org.kde.powerdevil: Handle button events action could not check for screen configuration
Feb 12 18:05:12 fedora org_kde_powerdevil[5987]: wl_display#1: error 1: invalid method 5, object kde_external_brightness_device_v1#43
Feb 12 18:05:12 fedora org_kde_powerdevil[5987]: The Wayland connection experienced a fatal error: Invalid argument
Feb 12 18:05:12 fedora systemd[2669]: plasma-powerdevil.service: Main process exited, code=exited, status=255/EXCEPTION
Feb 12 18:05:12 fedora systemd[2669]: plasma-powerdevil.service: Failed with result 'exit-code'.
Feb 12 18:05:13 fedora systemd[2669]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 19.
Feb 12 18:05:13 fedora systemd[2669]: Starting plasma-powerdevil.service - Powerdevil...
Feb 12 18:05:13 fedora org_kde_powerdevil[6072]: setHighDpiScaleFactorRoundingPolicy must be called before creating the QGuiApplication instance
Feb 12 18:05:13 fedora org_kde_powerdevil[6072]: Initializing libddcutil.  ddcutil version: 2.1.2, shared library: /usr/lib64/libddcutil.so.5.1.1
Feb 12 18:05:13 fedora org_kde_powerdevil[6072]: Options passed from client:
Feb 12 18:05:13 fedora org_kde_powerdevil[6072]: Applying combined options:
Feb 12 18:05:14 fedora org_kde_powerdevil[6072]: Library initialization complete.
Feb 12 18:05:14 fedora org_kde_powerdevil[6072]: Watch thread started
Feb 12 18:05:15 fedora systemd[2669]: Started plasma-powerdevil.service - Powerdevil.
Feb 12 18:05:15 fedora org_kde_powerdevil[6072]: org.kde.powerdevil: Handle button events action could not check for screen configuration
Feb 12 18:05:15 fedora org_kde_powerdevil[6072]: wl_display#1: error 1: invalid method 5, object kde_external_brightness_device_v1#43
Feb 12 18:05:15 fedora org_kde_powerdevil[6072]: The Wayland connection experienced a fatal error: Invalid argument
Feb 12 18:05:15 fedora systemd[2669]: plasma-powerdevil.service: Main process exited, code=exited, status=255/EXCEPTION
Feb 12 18:05:15 fedora systemd[2669]: plasma-powerdevil.service: Failed with result 'exit-code'.
Feb 12 18:05:15 fedora systemd[2669]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 20.
Feb 12 18:05:15 fedora systemd[2669]: Starting plasma-powerdevil.service - Powerdevil...
Feb 12 18:05:15 fedora org_kde_powerdevil[6214]: setHighDpiScaleFactorRoundingPolicy must be called before creating the QGuiApplication instance
Feb 12 18:05:15 fedora org_kde_powerdevil[6214]: Initializing libddcutil.  ddcutil version: 2.1.2, shared library: /usr/lib64/libddcutil.so.5.1.1
Feb 12 18:05:15 fedora org_kde_powerdevil[6214]: Options passed from client:
Feb 12 18:05:15 fedora org_kde_powerdevil[6214]: Applying combined options:
Feb 12 18:05:17 fedora org_kde_powerdevil[6214]: Library initialization complete.
Feb 12 18:05:17 fedora org_kde_powerdevil[6214]: Watch thread started
Feb 12 18:05:17 fedora systemd[2669]: Started plasma-powerdevil.service - Powerdevil.
Feb 12 18:05:17 fedora org_kde_powerdevil[6214]: org.kde.powerdevil: Handle button events action could not check for screen configuration
Feb 12 18:05:17 fedora org_kde_powerdevil[6214]: wl_display#1: error 1: invalid method 5, object kde_external_brightness_device_v1#43
Feb 12 18:05:17 fedora org_kde_powerdevil[6214]: The Wayland connection experienced a fatal error: Invalid argument
Feb 12 18:05:17 fedora systemd[2669]: plasma-powerdevil.service: Main process exited, code=exited, status=255/EXCEPTION
Feb 12 18:05:17 fedora systemd[2669]: plasma-powerdevil.service: Failed with result 'exit-code'.
Feb 12 18:05:17 fedora systemd[2669]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 21.
Feb 12 18:05:17 fedora systemd[2669]: Starting plasma-powerdevil.service - Powerdevil...
Feb 12 18:05:17 fedora org_kde_powerdevil[6364]: setHighDpiScaleFactorRoundingPolicy must be called before creating the QGuiApplication instance
Feb 12 18:05:17 fedora org_kde_powerdevil[6364]: Initializing libddcutil.  ddcutil version: 2.1.2, shared library: /usr/lib64/libddcutil.so.5.1.1
Feb 12 18:05:17 fedora org_kde_powerdevil[6364]: Options passed from client:
Feb 12 18:05:17 fedora org_kde_powerdevil[6364]: Applying combined options:
Feb 12 18:05:18 fedora org_kde_powerdevil[6364]: Library initialization complete.
Feb 12 18:05:18 fedora org_kde_powerdevil[6364]: Watch thread started
Feb 12 18:05:18 fedora systemd[2669]: Started plasma-powerdevil.service - Powerdevil.
Feb 12 18:05:18 fedora org_kde_powerdevil[6364]: org.kde.powerdevil: Handle button events action could not check for screen configuration
Feb 12 18:05:18 fedora org_kde_powerdevil[6364]: wl_display#1: error 1: invalid method 5, object kde_external_brightness_device_v1#43
Feb 12 18:05:18 fedora org_kde_powerdevil[6364]: The Wayland connection experienced a fatal error: Invalid argument
Feb 12 18:05:18 fedora systemd[2669]: plasma-powerdevil.service: Main process exited, code=exited, status=255/EXCEPTION
Feb 12 18:05:18 fedora systemd[2669]: plasma-powerdevil.service: Failed with result 'exit-code'.
Feb 12 18:05:18 fedora systemd[2669]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 22.
Feb 12 18:05:18 fedora systemd[2669]: Starting plasma-powerdevil.service - Powerdevil...
Feb 12 18:05:18 fedora org_kde_powerdevil[6449]: setHighDpiScaleFactorRoundingPolicy must be called before creating the QGuiApplication instance
Feb 12 18:05:18 fedora org_kde_powerdevil[6449]: Initializing libddcutil.  ddcutil version: 2.1.2, shared library: /usr/lib64/libddcutil.so.5.1.1
Feb 12 18:05:18 fedora org_kde_powerdevil[6449]: Options passed from client:
Feb 12 18:05:18 fedora org_kde_powerdevil[6449]: Applying combined options:
Feb 12 18:05:20 fedora org_kde_powerdevil[6449]: Library initialization complete.
Feb 12 18:05:20 fedora org_kde_powerdevil[6449]: Watch thread started
Feb 12 18:05:20 fedora systemd[2669]: Started plasma-powerdevil.service - Powerdevil.
Feb 12 18:05:20 fedora org_kde_powerdevil[6449]: org.kde.powerdevil: Handle button events action could not check for screen configuration
Feb 12 18:05:20 fedora org_kde_powerdevil[6449]: wl_display#1: error 1: invalid method 5, object kde_external_brightness_device_v1#43
Feb 12 18:05:20 fedora org_kde_powerdevil[6449]: The Wayland connection experienced a fatal error: Invalid argument
Feb 12 18:05:20 fedora systemd[2669]: plasma-powerdevil.service: Main process exited, code=exited, status=255/EXCEPTION
Feb 12 18:05:20 fedora systemd[2669]: plasma-powerdevil.service: Failed with result 'exit-code'.
Feb 12 18:05:20 fedora systemd[2669]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 23.
Feb 12 18:05:20 fedora systemd[2669]: Starting plasma-powerdevil.service - Powerdevil...
Feb 12 18:05:20 fedora org_kde_powerdevil[6537]: setHighDpiScaleFactorRoundingPolicy must be called before creating the QGuiApplication instance
Feb 12 18:05:21 fedora org_kde_powerdevil[6537]: Initializing libddcutil.  ddcutil version: 2.1.2, shared library: /usr/lib64/libddcutil.so.5.1.1
Feb 12 18:05:21 fedora org_kde_powerdevil[6537]: Options passed from client:
Feb 12 18:05:21 fedora org_kde_powerdevil[6537]: Applying combined options:
Feb 12 18:05:22 fedora org_kde_powerdevil[6537]: Library initialization complete.
Feb 12 18:05:22 fedora org_kde_powerdevil[6537]: Watch thread started
Feb 12 18:05:22 fedora systemd[2669]: Started plasma-powerdevil.service - Powerdevil.
Feb 12 18:05:22 fedora org_kde_powerdevil[6537]: org.kde.powerdevil: Handle button events action could not check for screen configuration
Feb 12 18:05:22 fedora org_kde_powerdevil[6537]: wl_display#1: error 1: invalid method 5, object kde_external_brightness_device_v1#43
Feb 12 18:05:22 fedora org_kde_powerdevil[6537]: The Wayland connection experienced a fatal error: Invalid argument
Feb 12 18:05:22 fedora systemd[2669]: plasma-powerdevil.service: Main process exited, code=exited, status=255/EXCEPTION
Feb 12 18:05:22 fedora systemd[2669]: plasma-powerdevil.service: Failed with result 'exit-code'.
Feb 12 18:05:22 fedora systemd[2669]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 24.
Feb 12 18:05:22 fedora systemd[2669]: Starting plasma-powerdevil.service - Powerdevil...
Feb 12 18:05:22 fedora org_kde_powerdevil[6646]: setHighDpiScaleFactorRoundingPolicy must be called before creating the QGuiApplication instance
Feb 12 18:05:23 fedora org_kde_powerdevil[6646]: Initializing libddcutil.  ddcutil version: 2.1.2, shared library: /usr/lib64/libddcutil.so.5.1.1
Feb 12 18:05:23 fedora org_kde_powerdevil[6646]: Options passed from client:
Feb 12 18:05:23 fedora org_kde_powerdevil[6646]: Applying combined options:
Feb 12 18:05:24 fedora org_kde_powerdevil[6646]: Library initialization complete.
Feb 12 18:05:24 fedora org_kde_powerdevil[6646]: Watch thread started
Feb 12 18:05:24 fedora systemd[2669]: Started plasma-powerdevil.service - Powerdevil.
Feb 12 18:05:24 fedora org_kde_powerdevil[6646]: org.kde.powerdevil: Handle button events action could not check for screen configuration
Feb 12 18:05:24 fedora org_kde_powerdevil[6646]: wl_display#1: error 1: invalid method 5, object kde_external_brightness_device_v1#43
Feb 12 18:05:24 fedora org_kde_powerdevil[6646]: The Wayland connection experienced a fatal error: Invalid argument
Feb 12 18:05:24 fedora systemd[2669]: plasma-powerdevil.service: Main process exited, code=exited, status=255/EXCEPTION
Feb 12 18:05:24 fedora systemd[2669]: plasma-powerdevil.service: Failed with result 'exit-code'.
Feb 12 18:05:25 fedora systemd[2669]: plasma-powerdevil.service: Scheduled restart job, restart counter is at 25.
Feb 12 18:05:25 fedora systemd[2669]: plasma-powerdevil.service: Start request repeated too quickly.
Feb 12 18:05:25 fedora systemd[2669]: plasma-powerdevil.service: Failed with result 'exit-code'.
Feb 12 18:05:25 fedora systemd[2669]: Failed to start plasma-powerdevil.service - Powerdevil.
``
Comment 8 Carlos Guzman 2025-02-12 18:45:48 UTC
Created attachment 178220 [details]
JournalCTL logs
Comment 9 Carlos Guzman 2025-02-12 18:46:32 UTC
(In reply to Nicolas Fella from comment #6)
> Can you please attach the output of "journalctl --no-pager -b
> --user-unit=plasma-powerdevil"?

I just attached mine.
Comment 10 Nicolas Fella 2025-02-12 18:52:40 UTC
Thank you both.

The relevant lines are

Feb 12 12:54:06 fedora org_kde_powerdevil[2620]: wl_display#1: error 1: invalid method 5, object kde_external_brightness_device_v1#40
Feb 12 12:54:06 fedora org_kde_powerdevil[2620]: kscreen.kwayland: Connection to Wayland server timed out.
Feb 12 12:54:07 fedora org_kde_powerdevil[2620]: kscreen.kwayland: Connection to Wayland server timed out.
Feb 12 12:54:07 fedora org_kde_powerdevil[2620]: The Wayland connection experienced a fatal error: Invalid argument
Comment 11 Nicolas Fella 2025-02-12 19:16:16 UTC
*** Bug 499896 has been marked as a duplicate of this bug. ***
Comment 12 DaydreamerKite 2025-02-13 05:28:41 UTC
As a Fedora 41 user, I also initially had the same issue upon upgrading to Plasma 6.3 where powerdevil was refusing to start, so power management was unavailable. However, I discovered something strange as I tried running dnf upgrade --refresh: several KDE packages had actually failed to update to 6.3, so I only had a partial Plasma 6.3 upgrade.

For me, the culprit was that I had Klassy (3rd party theme) installed, so several packages just failed to update due to a dependency conflict... but dnf4/Discover/packagekit just silently went through with the update anyway.

I removed Klassy, re-ran dnf update, and the rest of the KDE components updated to 6.3. With that, powerdevil and power management started working again.

Not sure if this is the exact same issue, but I've been noticing the common theme of several of these reports being for Fedora, so figured I would mention this in case it helps anyone.
Comment 13 Carlos Guzman 2025-02-13 16:15:25 UTC
(In reply to DaydreamerKite from comment #12)
> As a Fedora 41 user, I also initially had the same issue upon upgrading to
> Plasma 6.3 where powerdevil was refusing to start, so power management was
> unavailable. However, I discovered something strange as I tried running dnf
> upgrade --refresh: several KDE packages had actually failed to update to
> 6.3, so I only had a partial Plasma 6.3 upgrade.
> 
> For me, the culprit was that I had Klassy (3rd party theme) installed, so
> several packages just failed to update due to a dependency conflict... but
> dnf4/Discover/packagekit just silently went through with the update anyway.
> 
> I removed Klassy, re-ran dnf update, and the rest of the KDE components
> updated to 6.3. With that, powerdevil and power management started working
> again.
> 
> Not sure if this is the exact same issue, but I've been noticing the common
> theme of several of these reports being for Fedora, so figured I would
> mention this in case it helps anyone.

That was the issue. I had Klassy installed from the Terra repos. I removed it and did a dnf upgrade. All working fine now.
Comment 14 Mark Hendrikman 2025-02-13 17:48:18 UTC
I don't have Klassy installed but am still getting a battery icon that only appears for a millisecond every 2 seconds. All power-related functions are busted just as OP describes.

Anyone else have any ideas for what that could be? I'm on Fedora KDE with Plasma 6.3.

Please and thank you.
Comment 15 Pavel Dobiáš 2025-02-13 21:52:30 UTC
(In reply to Mark Hendrikman from comment #14)
> I don't have Klassy installed but am still getting a battery icon that only
> appears for a millisecond every 2 seconds. All power-related functions are
> busted just as OP describes.
> 
> Anyone else have any ideas for what that could be? I'm on Fedora KDE with
> Plasma 6.3.
> 
> Please and thank you.

Make sure you have no packages that prevent dependencies from updating, anything that depends on kdecoration2 in particular will cause this problem, not just Klassy. You can check this by attempting to update from a CLI and closely pay attention to the output, if any packages are skipped then you're in trouble and need to remove whatever is holding them back, this truly isn't an issue on KDE's side, but package maintainers'.
Comment 16 Mark Hendrikman 2025-02-14 08:31:46 UTC
(In reply to Pavel Dobiáš from comment #15)
> (In reply to Mark Hendrikman from comment #14)
> > I don't have Klassy installed but am still getting a battery icon that only
> > appears for a millisecond every 2 seconds. All power-related functions are
> > busted just as OP describes.
> > 
> > Anyone else have any ideas for what that could be? I'm on Fedora KDE with
> > Plasma 6.3.
> > 
> > Please and thank you.
> 
> Make sure you have no packages that prevent dependencies from updating,
> anything that depends on kdecoration2 in particular will cause this problem,
> not just Klassy. You can check this by attempting to update from a CLI and
> closely pay attention to the output, if any packages are skipped then you're
> in trouble and need to remove whatever is holding them back, this truly
> isn't an issue on KDE's side, but package maintainers'.

Thanks so much Pavel, Discover told me nothing but 'dnf update' indeed told me kdecoration2 was not updated and that the package Lightly-qt had a broken dependency. I don't even recall installing that but I seem to have had it enabled. I removed Lightly, and the update blockage was cleared. My battery tray icon is back.

I think the lesson here is that after an update, if things are buggy, run package managers in the CLI and see if they throw an error.
Comment 17 Mark Hendrikman 2025-02-14 08:34:41 UTC
One thing I was still wondering: how does a custom these prevent an OS' power management functions from working? From this relative layman's perspective, it seems those two should live sufficiently far away from each other.
Comment 18 Pavel Dobiáš 2025-02-14 08:44:36 UTC
(In reply to Mark Hendrikman from comment #17)
> One thing I was still wondering: how does a custom these prevent an OS'
> power management functions from working? From this relative layman's
> perspective, it seems those two should live sufficiently far away from each
> other.

It seems keeping these packages prevented updating kwin_wayland related stuff, because klassy and lightly add window decorations and therefore depend on it. This caused a crash in a system that manages both power management and display brightness on laptops, specifically because it was expecting a function in a wayland protocol that should have been updated but wasn't because the packages were skipable.
Comment 19 Mark Hendrikman 2025-02-14 09:16:08 UTC
(In reply to Pavel Dobiáš from comment #18)
> (In reply to Mark Hendrikman from comment #17)
> > One thing I was still wondering: how does a custom these prevent an OS'
> > power management functions from working? From this relative layman's
> > perspective, it seems those two should live sufficiently far away from each
> > other.
> 
> It seems keeping these packages prevented updating kwin_wayland related
> stuff, because klassy and lightly add window decorations and therefore
> depend on it. This caused a crash in a system that manages both power
> management and display brightness on laptops, specifically because it was
> expecting a function in a wayland protocol that should have been updated but
> wasn't because the packages were skipable.

I think I follow you. Thanks!