Bug 452715 - Power profile slider is missing
Summary: Power profile slider is missing
Status: RESOLVED UPSTREAM
Alias: None
Product: Powerdevil
Classification: Unmaintained
Component: general (other bugs)
Version First Reported In: 5.24.4
Platform: Arch Linux Linux
: NOR normal
Target Milestone: ---
Assignee: Plasma Bugs List
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2022-04-18 04:36 UTC by Johannes Fleisch
Modified: 2022-04-19 20:11 UTC (History)
2 users (show)

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

Attachments
Battery and Brightness (54.78 KB, image/png)
2022-04-18 04:36 UTC, Johannes Fleisch 		Details
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Description Johannes Fleisch 2022-04-18 04:36:24 UTC 
Created attachment 148211 [details]
Battery and Brightness

I don't have slider for power profile selection in battery applet.
I have power-profiles-daemon installed.

OBSERVED RESULT
no slider

EXPECTED RESULT
Power profile slider visible

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: EndeavourOS
KDE Plasma Version: 5.24.4
Qt Version: 5.15.3
Comment 1 Bacteria 2022-04-18 08:53:49 UTC 
You need to have supported hardware to use power profiles. So if you have the daemon installed and running, your hardware is probably not supported.

According to https://gitlab.freedesktop.org/hadess/power-profiles-daemon/-/issues/73, AMD hasn't implement platform_profile in the kernel so AMD CPUs are not supported.

If you have intel CPU, you might wanna check your kernel parameters if it is disabling power management.
Comment 2 Nate Graham 2022-04-18 15:25:33 UTC 
Indeed. A good way to check is to run `powerprofilesctl` in a terminal window and check the output. If it doesn't have "performance" listed as one of the available modes, or if everything there says something other than "platform_profile" for "driver:" then your hardware isn't supported. Can you check?
Comment 3 Johannes Fleisch 2022-04-19 17:12:24 UTC 
The output is this: 

balanced:
    Driver:     placeholder

  power-saver:
    Driver:     placeholder

But i have an AMD CPU, so it is not supported. Thanks for the solution and reply!
Comment 4 Nate Graham 2022-04-19 20:11:29 UTC 
Yep, not supported by the hardware yet I'm afraid. AMD power profile stuff is still being worked on at the kernel level, I believe,