https://bugs.kde.org/show_bug.cgi?id=394656
Bug ID: 394656
Summary: [wayland] KWin crashes in EglGbm backend when
attaching an external monitor with MESA/amdgpu
Product: kwin
Version: 5.12.5
Platform: Neon Packages
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: alexander-kde@ninetailed.ninja
Target Milestone: ---
Created attachment 112855
--> https://bugs.kde.org/attachment.cgi?id=112855&action=edit
sudo sh -c 'gdb --pid "$(pidof kwin_wayland)" --eval-command="continue"
--eval-command="thread apply all backtrace full" --eval-command="quit" 2>&1 |
tee /home/alexander/kwin2.log'
1) Start a Plasma session using GDM (SDDM didn't work last time I tried)
2) Switch to another VT and log int
3) Attach debugger to the `kwin_wayland` process
4) Switch back to KDE Plasma
5) Attach an external monitor using HDMI
Platform:
- Device: Lenovo ideapad Y700-ACZ (Laptop)
- GPU: Radeon R9 M280X (BonaireXT)
- Kernel: Linux 4.17.0-041700rc6-generic (Ubuntu kernel PPA)
- amdgpu driver with amdgpu.dc=1
- Userland:
- libgbm1 18.0.4-1 (Debian unstable)
- libdrm2 2.4.92-1 (Debian unstable)
- libgl1-mesa-dri 10.0.4-1 (Debian unstable)
- libqt5* 5.10.0+dfsg-2+16.04+xenial+build46 (Neon user)
- kwin-wayland 4:5.12.5-0neon+16.04+xenial+build88 (Neon user)
Full GDB trace at time of SIGABRT is included in the attachment.
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