https://bugs.kde.org/show_bug.cgi?id=481946
Bug ID: 481946
Summary: Screen reset of position and resolution when turned
off and on again
Classification: Plasma
Product: KScreen
Version: 5.27.10
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: common
Assignee: kscreen-bugs-n...@kde.org
Reporter: k...@tfan.eu
Target Milestone: ---
Created attachment 166162
--> https://bugs.kde.org/attachment.cgi?id=166162&action=edit
Screen Arrangement/Res after on/off
SUMMARY
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I have 2 Monitors. When I turn off my primary monitor and turn it back on, it
resets to a low resolution and its position in the screen arrangement is reset.
It's very annoying to fix because my mouse can be stuck on one monitor while
KScreen opens on the other monitor.
This only happens when I turn the screen off. Unplugging and plugging back in
works perfectly fine. The Screen being put to sleep by KDE leads to the same
behavior.
It does not happen if the power-off is super short, like <5s or so.
STEPS TO REPRODUCE
1. Turn off Screen
2. Turn on Screen
3. Suffer
OBSERVED RESULT
Monitor is reset to a low resolution. The multi-monitor screen arrangement is
put into a weird state.
EXPECTED RESULT
Everything is as it was before the screen was turned off.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 5.27.10 (Arch, latest as of now)
(available in About System)
KDE Plasma Version: 5.27.10
KDE Frameworks Version: 5.115.0
Qt Version: 5.15.12
ADDITIONAL INFORMATION
Operating System: Arch Linux
Kernel Version: 6.7.6-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 24 × AMD Ryzen 9 7900 12-Core Processor
Memory: 30,5 GiB of RAM
Graphics Processor: AMD Radeon RX 6800 XT
Manufacturer: ASRock
Product Name: B650M Pro RS
Both my screen run at 1920x1080. The one with the issue is connected via
DisplayPort. It's marked as my primary monitor. The other one is connected via
HDMI.
xrandr output:
Screen 0: minimum 16 x 16, current 3840 x 1080, maximum 32767 x 32767
DP-2 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis)
530mm x 300mm
1920x1080 59.96*+
1440x1080 59.99
1400x1050 59.98
1280x1024 59.89
1280x960 59.94
1152x864 59.96
1024x768 59.92
800x600 59.86
640x480 59.38
320x240 59.52
1680x1050 59.95
1440x900 59.89
1280x800 59.81
1152x720 59.97
960x600 59.63
928x580 59.88
800x500 59.50
768x480 59.90
720x480 59.71
640x400 59.95
320x200 58.96
1600x900 59.95
1368x768 59.88
1280x720 59.86
1024x576 59.90
864x486 59.92
720x400 59.55
640x350 59.77
HDMI-A-1 connected 1920x1080+1920+0 (normal left inverted right x axis y axis)
530mm x 300mm
1920x1080 59.96*+
1440x1080 59.99
1400x1050 59.98
1280x1024 59.89
1280x960 59.94
1152x864 59.96
1024x768 59.92
800x600 59.86
640x480 59.38
320x240 59.52
1680x1050 59.95
1440x900 59.89
1280x800 59.81
1152x720 59.97
960x600 59.63
928x580 59.88
800x500 59.50
768x480 59.90
720x480 59.71
640x400 59.95
320x200 58.96
1600x900 59.95
1368x768 59.88
1280x720 59.86
1024x576 59.90
864x486 59.92
720x400 59.55
640x350 59.77
I'd be happy to share any further Information that will help resolve this.
I also think that there is another lesson to be learned from this issue: The
Display arrangement should never be default-configured into an invalid state
(as in the screenshot - the display NEED to touch but they don't!). It might
also make sense to default-intialize screens to use the maximum resolution.
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