SUMMARY The KDE lockscreen no longer lock the screen, while idle or when I lock the screen manually since Plasma 6.3. I get a blackscreen for a half second, then my unlocked desktop. STEPS TO REPRODUCE 1. deactivate/activate the lock screen 2. Changed parameters like "when is the passoword required" or the time to activate the screen OBSERVED RESULT No changes :( SOFTWARE/OS VERSIONS Fedora 41 Kernel: 6.12.11-200.fc41.x86_64 (64-bit) KDE Plasma Version: 6.3.0 KDE Frameworks Version: 6.10.0 Qt Version: 6.8.2 running on Wayland ADDITIONAL INFORMATION I have a GTX 1060 with proprietary NVIDIA drivers loaded from the Fedora RPM Fusion Non Free Repo. Never had problems with it. The bug is new with KDE 6.3
I cannot reproduce on Debian (unstable repository) with an Intel integrated GPU (UHD 620).
Does it happen in a new clean user account? If you switch to using the Nouveau drivers on your main user account, does it still happen?
(In reply to Nate Graham from comment #2) > Does it happen in a new clean user account? > > If you switch to using the Nouveau drivers on your main user account, does > it still happen? I cannot switch to a new user account while clicking on "switch user" with nvidia and also nouveau loaded. I get a blackscreen with my no movable cursor. I activated the auto-login via command line months ago, maybe thats the reason, I never used two users on this device before. On my main user account with nouveaou loaded and nvidia blacklisted the screen-lock bug also happens.
> . I activated the auto-login via command line months ago How did you do that?
(In reply to David Redondo from comment #4) > > . I activated the auto-login via command line months ago > > How did you do that? I added the "User" and "Session" parameters in /etc/sddm.conf under "[Autologin]" months ago. Now I wanted to check again and the parameters are... gone? But in KDE System Settings autologin is still enabled. If I am correctly informed, KDE overwrites this setting again when I change something in the GUI. Maybe thats the reason for the missing parameters I added, but I think you know it better. All I can say is, that Autologin is enabled via System Settings, not over terminal anymore, sorry for the misinformation
Auto-login is not related to screen locking, JFYI.
Hi - just a thought, are there any messages about kscreenlocker_greet recorded in the system journal when you try locking the screen? Are any crashes perhaps showing up in the results of the command `coredumpctl list --reverse` from when that happens?
🐛🧹 ⚠️ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME. For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging. 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. Closing as RESOLVED WORKSFORME.