https://bugs.kde.org/show_bug.cgi?id=483094
--- Comment #72 from j...@raby.sh --- Adding more information. I've been getting this problem for ages on my arch workstation. It has an nvidia TITAN X GPU with 2 monitors (hdmi and displayport) when using drivers 565.xx (and more recently 570.86.16), kscreenlocker_greet hangs when the monitor were sleeping. When it hangs I see this in journalctl: ``` Feb 17 06:32:09 rom kscreenlocker_greet[133962]: Graphics device lost, cleaning up scenegraph and releasing RHI Feb 17 06:32:09 rom kscreenlocker_greet[133962]: QRhiGles2: Context is lost. Feb 17 06:32:09 rom kscreenlocker_greet[133962]: Graphics device lost, cleaning up scenegraph and releasing RHI Feb 17 06:32:09 rom kscreenlocker_greet[133962]: QRhiGles2: Context is lost. ``` This morning I also noticed this in the kernel logs: ``` Feb 17 06:32:09 rom kernel: Code: 89 e5 41 54 53 48 83 ec 30 4c 8b 67 08 64 48 8b 1c 25 28 00 00 00 48 89 5d e8 48 89 fb 49 8b bc 24 80 00 00 00 48 85 ff 74 5f <48> 8b 07 ff 50 58 84 c0 74 55 e8 e1 e7 ff ff 48 39 d8 74 7c 49 8b Feb 17 06:32:09 rom kernel: QSGRenderThread[133993]: segfault at 100000000 ip 0000721dba4faff0 sp 0000721d6f7fd9f0 error 4 in libQt6Gui.so.6.8.2[4faff0,721dba0dd000+69c000] likely on CPU 2 (core 2, socket 0) ``` If i set `QT_QUICK_BACKEND=software` in ~/.config/environment.d/qt-quick.conf (and reboot), I can't reproduce the issue anymore. Also, when running nvidia drivers version aur/nvidia-550xx-dkms 550.144.03-1, the problem doesn't occur. this is all on: arch linux x11 (xorg-server 21.1.15-1) libplasma 6.3.0-1 kscreenlocker 6.3.0-1 linux 6.13.2.arch1-1 To reproduce, I lock the screen with my shortcut, the screens go to sleep. when moving the mouse, the login screen appear with the clock, but there's no password box. if I type my password blindly it will go back to my session eventually, probably after 20-30s. -- You are receiving this mail because: You are watching all bug changes.
