This happens sometimes when I lock the computer and then I need to unlock the session using loginctl unlock-session. If it starts happening, it'll continue happening. If it doesn't start happening the first time, it will not occur either. Reproducible: Sometimes Steps to Reproduce: 1.Login to a KDE session and lock your session later 2. 3. Actual Results: The screen flashes a few times and gives a message you need to go to the console to unlock your session Expected Results: A locked session I'm running gentoo-sources-5.3.11 and nvidia-drivers 440.31. I've tried various kernels and various nvidia-drivers, but it keeps occuring. Thething is it always happens on the same address. The message below will appear in dmesg: [ 404.224913] kscreenlocker_g[1795]: segfault at 7ffcf996bff0 ip 00007f3e3b9ad8a8 sp 00007ffcf996bfb0 error 6 in libQt5Gui.so.5.12.5[7f3e3b6de000+367000] [ 404.224918] Code: ff 90 48 01 c5 49 8b 44 ec 40 e9 2f ff ff ff 90 66 90 41 57 41 56 41 55 41 54 55 53 48 89 fd 48 81 ec d8 38 00 00 48 8b 5f 10 <48> 89 74 24 40 88 54 24 4f 64 48 8b 04 25 28 00 00 00 48 89 84 24
Missing emerge --info. You're not posting this error from a running session that had its Qt or Frameworks version upgraded underneath it?
Created attachment 596508 [details] My emerge --info I'm not posting this from a running session that had QT Frameworks upgraded underneath it. I've even tried re-emerging some related packages (qtgui, kscreenlocker etc.), but the error persists.
UPDATE: Just tried to lock my screen and it happened twice again, though this time no error on the display, but it actually recovered after flashing twice... [ 7250.125329] kscreenlocker_g[3667]: segfault at 7fff8746cf90 ip 00007fbe0824b8a8 sp 00007fff8746cf50 error 6 in libQt5Gui.so.5.12.5[7fbe07f7c000+367000] [ 7250.125335] Code: ff 90 48 01 c5 49 8b 44 ec 40 e9 2f ff ff ff 90 66 90 41 57 41 56 41 55 41 54 55 53 48 89 fd 48 81 ec d8 38 00 00 48 8b 5f 10 <48> 89 74 24 40 88 54 24 4f 64 48 8b 04 25 28 00 00 00 48 89 84 24 [ 7253.075317] kscreenlocker_g[3700]: segfault at 7fff603a6ff0 ip 00007f35730318a8 sp 00007fff603a6fb0 error 6 in libQt5Gui.so.5.12.5[7f3572d62000+367000] [ 7253.075323] Code: ff 90 48 01 c5 49 8b 44 ec 40 e9 2f ff ff ff 90 66 90 41 57 41 56 41 55 41 54 55 53 48 89 fd 48 81 ec d8 38 00 00 48 8b 5f 10 <48> 89 74 24 40 88 54 24 4f 64 48 8b 04 25 28 00 00 00 48 89 84 24
After re-emerging most QT related packages the problem still occurs and only sometimes when locking the screen where it flickers 4 or 5 times (I guess it tries to restore it 4 or 5 times and then gives up, as the message also appears 4 or 5x in dmesg) and then displays a black window with white text that the screen locker has failed and you need to unlock it through the console
Seems to have been fixed after upgrading to 5.64. Has been stable for approximately a week now.
