Each time I lock my KDE session - manually using the lock widget - using the command line "loginctl lock-session" - using xscreensaver which locks the screen after some minutes the system hangs. Parts of my screen turn black but I can see the rest of the screen. There is no login dialog or lock screen background. I also cannot unlock my session by typing blind my credentials. However, it does not kill the desktop session. I can switch to a terminal CTRL+ALT+F1, login, and enter "loginctrl unlock-sessions". After switching back to KDE Wayland session I can use it again. I have an AMD graphic card using 3 screens by 3 display port output. $ inxi -G Graphics: Device-1: AMD Lexa PRO [Radeon 540/540X/550/550X / RX 540X/550/550X] driver: amdgpu v: kernel Display: wayland server: X.Org 1.21.1.1 driver: loaded: amdgpu,ati unloaded: fbdev,modesetting,vesa resolution: 1: 1200x1920~60Hz 2: 1920x1200~60Hz 3: 1920x1200~60Hz OpenGL: renderer: Radeon RX550/550 Series (POLARIS12 DRM 3.40.0 5.11.0-34-generic LLVM 12.0.0) v: 4.6 Mesa 21.0.3 ---- Kubuntu 21.04 ii plasma-workspace 4:5.22.4-0ubuntu1~ubuntu21.04~ppa1 amd64 Plasma Workspace for KF5 ii libkscreenlocker5:amd64 5.22.4-0ubuntu1~ubuntu21.04~ppa1
Do you see a message saying that the lock screen is broken? If so, this is probably the same issue as Bug 439096.
There is no message, it just hangs immediately after locking. Sorry.
OK, thanks.
After switching to an Nvidia graphic card, the locking works as expected. There must be a problem in combination with the AMD driver...
(In reply to Alexander Fieroch from comment #4) > After switching to an Nvidia graphic card, the locking works as expected. > There must be a problem in combination with the AMD driver... It must be, because I personally have this issue and I am running an AMD GPU, I also have problems on the lock screen through the default key-bind when I am using wayland, the screen just jitters and takes a while to receive any input.
Do you have multiple screens connected when this happens?
Yes, I had 3 monitors connected by displayport with resolution 1920x1200 each. Now I have a different multi-montior setup with new different problems I needed to open a new ticket: https://bugs.kde.org/show_bug.cgi?id=461544
*** This bug has been marked as a duplicate of bug 374890 ***
Sorry, I think I mis-triaged this as a duplicate of bug 374890, which was not correct.
Regardless, if it's only broken when using an AMD GPU, that's a useful data point. Perhaps it was a driver issue that's since been fixed? Can you let me know if you still experience the issue in Plasma 5.27 and the latest Mesa drivers?
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please mark the bug as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone!
This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!