https://bugs.kde.org/show_bug.cgi?id=462289
Bug ID: 462289
Summary: 100% reproducible core dump using 2 display port
monitors after power saving wakeup
Classification: Plasma
Product: kwin
Version: 5.26.3
Platform: Archlinux
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: nkuk...@lbsd.net
Target Milestone: ---
Created attachment 154058
--> https://bugs.kde.org/attachment.cgi?id=154058&action=edit
Wayland core dump
SUMMARY
I have 2 AsusTek display port monitors connected to a Radeon 6600XT graphics
adapter via DisplayPort.
Everything is fine, unless I leave the machine until the lock screen displays
and the monitors power off.
When I come back and move the mouse, kwin_wayland crashes and all closed apps
dissapear. After this the session is pretty much unsable and is just a blank
black screen.
STEPS TO REPRODUCE
1. Connect 2 display port monitors to a Radeon graphics adapter
2. Leave the machine until the monitors power off after the lock screen is
displayed
3. Move the mouse, kwin_wayland core dumps
OBSERVED RESULT
kwin_wayland core dumps on monitor wakeup
EXPECTED RESULT
No core dumping and safe wakeup.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: ArchLinux
$ pacman -Q | grep -e plasma -e kde
kde-cli-tools 5.26.3-1
kde-gtk-config 5.26.3-1
kde-system-meta 22.08-2
kdeclarative 5.100.0-1
kdecoration 5.26.3-1
kded 5.100.0-1
kdegraphics-mobipocket 22.08.3-1
kdegraphics-thumbnailers 22.08.3-1
kdelibs4support 5.100.0-1
kdenetwork-filesharing 22.08.3-1
kdeplasma-addons 5.26.3-1
kdesu 5.100.0-1
libblockdev 2.28-1
plasma-browser-integration 5.26.3-1
plasma-desktop 5.26.3-1
plasma-disks 5.26.3-1
plasma-firewall 5.26.3-1
plasma-framework 5.100.1-1
plasma-integration 5.26.3-1
plasma-meta 5.25-1
plasma-nm 5.26.3-1
plasma-pa 5.26.3-1
plasma-sdk 5.26.3-1
plasma-systemmonitor 5.26.3-1
plasma-thunderbolt 5.26.3-1
plasma-vault 5.26.3-1
plasma-wayland-session 5.26.3-1
plasma-workspace 5.26.3-1
plasma-workspace-wallpapers 5.26.3-1
polkit-kde-agent 5.26.3-1
qt5-base 5.15.7+kde+r176-1
qt5-declarative 5.15.7+kde+r23-1
qt5-location 5.15.7+kde+r3-1
qt5-multimedia 5.15.7+kde+r1-1
qt5-quickcontrols2 5.15.7+kde+r6-1
qt5-speech 5.15.7+kde+r1-1
qt5-svg 5.15.7+kde+r9-1
qt5-tools 5.15.7+kde+r1-2
qt5-wayland 5.15.7+kde+r55-1
qt5-webchannel 5.15.7+kde+r3-1
xdg-desktop-portal-kde 5.26.3-1
ADDITIONAL INFORMATION
Attached some logs.
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