Bug 480093

My apologies, I hadn't scrolled >.< this is my first bug report...

SUMMARY

When the desktop is locked and 60 seconds have passed, the screens turn off, as per the setting in the Energy Saving section of the system settings. However, they don't stay turned off, they turn back on after a couple of seconds. This goes on forever.

STEPS TO REPRODUCE
1. Lock desktop.
2. Wait 60 seconds.

OBSERVED RESULT

The screens turn off,  but turn on again a few seconds later, and this loop goes on.

EXPECTED RESULT

The screens should stay off.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Arch Linux 6.7.0-zen3-1-zen (64-bit)
KDE Plasma Version: 5.92.0
KDE Frameworks Version: 5.248.0
Qt Version: 6.7.0

ADDITIONAL INFORMATION

Let me know if I can provide anything else.

Thanks for the bug report. A few questions?

- Are you using Wayland or X11?
- Does the issue reproduce with only a single screen?
- Does the issue happen if you turn the screens off manually using a global keyboard shortcut assigned to the relevant action in System Settings > Keyboard > Shortcuts?
- What kind of GPU hardware is the system using?
- Can you provide details about the screens that exhibit the issues and mention how they're physically plugged in?

Thanks again!

- I'm using Wayland.
- I've just done a bit of testing, and it seems to only happen when all of the three screens are plugged in.
- Yes it does, with the same behavior as above: it happens only when the three screens are plugged in.
- AMD Radeon RX 5700 XT
- The three screens I'm using, from left to right :
   - HP E190i, 1280x1024, using DisplayPort
   - LG Ultrafine, 3840x2160@150%, using HDMI
   - Philips 247E6, 1920x1080, using HDMI
The CPU doesn't have a graphics chipset, so all of these are plugged into the GPU's ports.

The screens are supposed to come back on when "user activity" is detected. Normally, this means the desktop receiving input events from devices like touchpad, mouse or keyboard. Activity can also be simulated by an application.

Does this still happen if you unplug your mouse and keyboard?

Seems similar to bug 480026, which btw (just an observation, not necessarily meaningful) is also using a discrete AMD GPU.

I haven't been able to reproduce this bug as consistently as before, even though my hardware configuration hasn't changed... I did play around with my display configuration for unrelated reasons though.

Here's a list of package upgrades I've installed since my bug report:

[2024-01-23T23:13:12+0100] [ALPM] upgraded aom (3.8.0-2 -> 3.8.1-1)
[2024-01-23T23:13:12+0100] [ALPM] upgraded zlib (1:1.3-2 -> 1:1.3.1-1)
[2024-01-23T23:13:13+0100] [ALPM] upgraded btrfs-progs (6.6.3-1 -> 6.7-1)
[2024-01-23T23:13:13+0100] [ALPM] upgraded ca-certificates-mozilla (3.96.1-1 -> 3.97-1)
[2024-01-23T23:13:13+0100] [ALPM] upgraded glib2 (2.78.3-1 -> 2.78.4-1)
[2024-01-23T23:13:13+0100] [ALPM] upgraded md4c (0.5.0-1 -> 0.5.1-1)
[2024-01-23T23:13:13+0100] [ALPM] upgraded libnghttp2 (1.58.0-1 -> 1.59.0-1)
[2024-01-23T23:13:13+0100] [ALPM] upgraded minizip (1:1.3-2 -> 1:1.3.1-1)
[2024-01-23T23:13:13+0100] [ALPM] upgraded nss (3.96.1-1 -> 3.97-1)
[2024-01-23T23:13:13+0100] [ALPM] upgraded chatterino2-git (2.4.5.r206.g36931fa-1 -> 2.4.5.r213.g5628605-1)
[2024-01-23T23:13:14+0100] [ALPM] upgraded chromium (121.0.6167.71-1 -> 121.0.6167.85-1)
[2024-01-23T23:13:15+0100] [ALPM] upgraded clang (16.0.6-1 -> 16.0.6-2)
[2024-01-23T23:13:15+0100] [ALPM] upgraded ddcutil (2.1.0-2 -> 2.1.0-3)
[2024-01-23T23:13:15+0100] [ALPM] upgraded libplacebo (6.338.1-1 -> 6.338.2-1)
[2024-01-23T23:13:15+0100] [ALPM] upgraded discord_arch_electron (0.0.40-1 -> 0.0.41-1)
[2024-01-23T23:13:15+0100] [ALPM] upgraded docker-compose (2.24.1-1 -> 2.24.2-1)
[2024-01-23T23:13:15+0100] [ALPM] upgraded duckstation-git (r6808.bc04854e-1 -> 0.1.r6331.gbcf7f55-1)
[2024-01-23T23:13:16+0100] [ALPM] upgraded electron28 (28.1.4-1 -> 28.1.4-2)
[2024-01-23T23:13:16+0100] [ALPM] upgraded fakeroot (1.32.2-1 -> 1.33-1)
[2024-01-23T23:13:17+0100] [ALPM] upgraded gallery-dl (1.26.6-1 -> 1.26.7-1)
[2024-01-23T23:13:17+0100] [ALPM] upgraded gdb-common (13.2-1 -> 14.1-1)
[2024-01-23T23:13:17+0100] [ALPM] upgraded gdb (13.2-1 -> 14.1-1)
[2024-01-23T23:13:17+0100] [ALPM] upgraded glib2-docs (2.78.3-1 -> 2.78.4-1)
[2024-01-23T23:13:17+0100] [ALPM] upgraded imagemagick (7.1.1.26-2 -> 7.1.1.27-1)
[2024-01-23T23:13:17+0100] [ALPM] upgraded lib32-zlib (1.3-1 -> 1.3.1-1)
[2024-01-23T23:13:17+0100] [ALPM] upgraded lib32-glib2 (2.78.3-1 -> 2.78.4-1)
[2024-01-23T23:13:17+0100] [ALPM] upgraded lib32-nss (3.96.1-1 -> 3.97-1)
[2024-01-23T23:13:17+0100] [ALPM] upgraded libngtcp2 (1.1.0-1 -> 1.2.0-1)
[2024-01-23T23:13:17+0100] [ALPM] upgraded libolm (3.2.15-1 -> 3.2.16-1)
[2024-01-23T23:13:17+0100] [ALPM] upgraded libpaper (2.1.2-1 -> 2.1.3-1)
[2024-01-23T23:13:18+0100] [ALPM] upgraded linux (6.7.arch3-1 -> 6.7.1.arch1-1)
[2024-01-23T23:13:19+0100] [ALPM] upgraded linux-zen (6.7.zen3-1 -> 6.7.1.zen1-1)
[2024-01-23T23:13:22+0100] [ALPM] upgraded linux-zen-headers (6.7.zen3-1 -> 6.7.1.zen1-1)
[2024-01-23T23:13:22+0100] [ALPM] upgraded nodejs (21.6.0-2 -> 21.6.1-1)
[2024-01-23T23:13:22+0100] [ALPM] upgraded openimageio (2.5.6.0-1 -> 2.5.7.0-1)
[2024-01-23T23:13:22+0100] [ALPM] upgraded ostree (2023.8-1 -> 2024.1-1)
[2024-01-23T23:13:22+0100] [ALPM] upgraded python-jaraco.functools (3.9.0-1 -> 4.0.0-1)
[2024-01-23T23:13:22+0100] [ALPM] upgraded python-pyclip (0.7.0-3 -> 0.7.0-4)
[2024-01-23T23:13:22+0100] [ALPM] upgraded qpwgraph (0.6.1-1 -> 0.6.2-1)
[2024-01-23T23:13:22+0100] [ALPM] upgraded qqc2-desktop-style (5.248.0-1 -> 5.248.0-2)
[2024-01-23T23:13:22+0100] [ALPM] upgraded sdl2_mixer (2.6.3-2 -> 2.8.0-1)
[2024-01-23T23:13:22+0100] [ALPM] upgraded sdl2_ttf (2.20.2-2 -> 2.22.0-1)
[2024-01-23T23:13:22+0100] [ALPM] upgraded tenacity-git (1:r14960.g3c9532522-1 -> 1:r14961.gdf6704909-1)
[2024-01-23T23:13:22+0100] [ALPM] upgraded usd (23.11-6 -> 23.11-8)
[2024-01-23T23:13:22+0100] [ALPM] upgraded virtiofsd (1.9.0-2 -> 1.10.0-1)
[2024-01-23T23:13:22+0100] [ALPM] upgraded vlc (3.0.20-4 -> 3.0.20-5)
[2024-01-23T23:13:22+0100] [ALPM] upgraded xorg-xwayland (23.2.4-1 -> 23.2.4-

I'm not sure if any of those fixed it, I'll post an update if I can manage to reproduce it again.

Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!

This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!