https://bugs.kde.org/show_bug.cgi?id=484031
Bug ID: 484031
Summary: After waking from suspend with four-monitor setup, one
or two monitors don't wake up
Classification: Plasma
Product: kwin
Version: 6.0.2
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: multi-screen
Assignee: kwin-bugs-n...@kde.org
Reporter: g...@section9.follonica.org
Target Milestone: ---
Created attachment 167488
--> https://bugs.kde.org/attachment.cgi?id=167488&action=edit
qdbus org.kde.KWin /KWin supportInformation
SUMMARY
I have a four-monitor setup. All monitors have different resolutions and are
connected to an AMD RX580.
Sometimes, after waking up the system after a suspend event, one or two
monitors don't wake up. This issue never happened to me before upgradeing to
Plasma 6.0.0. I'm running on X11.
STEPS TO REPRODUCE
1. Suspend the system via systemctl suspend or by clicking "sleep" in kickoff
2. wait some time
3. wake up the system
OBSERVED RESULT
One or two monitors, approximatly 50% of the time, don't wake up. The monitors
that don't wake up are always the same, one connected via an HDMI-DVI adapter
and the other via an HDMI one. The other two monitors, hooked up via HDMI and
DP always wake up without issues.
EXPECTED RESULT
All monitors wake up.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora Linux 39
KDE Plasma Version: 6.0.2
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2
ADDITIONAL INFORMATION
xrandr output after waking up and one monitor off (HDMI-A-1):
Screen 0: minimum 320 x 200, current 4480 x 2284, maximum 16384 x 16384
DisplayPort-0 connected primary 2560x1440+1920+844 (normal left inverted right
x axis y axis) 597mm x 336mm
2560x1440 59.95*+ 74.97 72.00 60.02 50.01 48.00
1920x1200 59.95
1920x1080 74.97 60.00 50.00 59.94
1600x1200 59.95
1280x1440 59.91
1680x1050 59.95
1280x1024 75.02 60.02
1440x900 59.89
1280x960 60.00
1280x800 59.95
1280x720 60.00 50.00 59.94
1024x768 75.03 70.07 60.00
832x624 74.55
800x600 72.19 75.00 60.32 56.25
720x576 50.00
720x480 60.00 59.94
640x480 75.00 72.81 66.67 60.00 59.94
720x400 70.08
DisplayPort-1 disconnected (normal left inverted right x axis y axis)
HDMI-A-0 connected 1280x1024+640+0 inverted (normal left inverted right x axis
y axis) 338mm x 270mm
1280x1024 60.02*+ 75.02
1280x800 60.02
1152x864 75.00
1280x720 60.02
1024x768 75.03 70.07 60.00
832x624 74.55
800x600 72.19 75.00 60.32 56.25
640x480 75.00 72.81 66.67 59.94
720x400 70.08
HDMI-A-1 connected (normal left inverted right x axis y axis)
1920x1080 60.00 + 50.00 50.00 59.94
1680x1050 59.88
1600x900 60.00
1280x1024 60.02
1440x900 59.90
1280x800 59.91
1280x720 60.00 50.00 59.94
1024x768 60.00
800x600 60.32
720x576 50.00
720x480 60.00 59.94
640x480 60.00 59.94
DVI-D-0 connected 1920x1080+0+1024 (normal left inverted right x axis y axis)
510mm x 290mm
1920x1080 60.00*+
1680x1050 59.88
1280x1024 60.02
1440x900 60.00
1280x960 60.00
1280x800 60.00
1152x864 59.97
1280x720 60.00
1024x768 60.00
800x600 60.32
640x480 59.94
Have to wake up the monitor via "xrandr --output HDMI-A-1 --auto" and
subsequently rearrange the disposition with kscreen kcm.
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