Created attachment 167058 [details] Part of the journal (journalctl -m) when locking the screen SUMMARY When I lock my system, the screen goes black until I blindly type the password, or unlock it via loginctl. STEPS TO REPRODUCE 1. Lock the system (Meta + L) 2. Observe 3. Press any button 4. Observe OBSERVED RESULT After locking, the screen goes black. After pressing any button, the cursor appears. I can exit this black screen by either: 1) blindly typing the password and hitting enter, or 2) unlock the session using loginctl See this video for a demonstration (I cannot upload it here, as it's too large): https://www.youtube.com/watch?v=_lVF2S9akZw EXPECTED RESULT The lock screen is shown SOFTWARE/OS VERSIONS Linux/KDE Plasma: 6.7.9-zen1-1-zen (64-bit) KDE Plasma Version: 6.0.1 KDE Frameworks Version: 6.0.0 Qt Version: 6.6.2 ADDITIONAL INFORMATION I believe this is not a duplicate of https://bugs.kde.org/show_bug.cgi?id=481308 as the black screen only appears after locking and does not disappear after some time. Nothing relevant appears in the journal when I lock the screen, but I attached the part anyway
I did not find a way to edit my last comment, so I just want to add that I can also reproduce this on Plasma 6.0.2
I can confirm the issue as I see it on the OrangePi Neo I'm developing on. As soon as we put the device to sleep and wait a little, most of the time we see a black screen with mouse cursor. On a gaming handheld there are no buttons to interact with the lockscreen. When I attach a keyboard to the device and press Enter it shows the plasma desktop. If the user has a password, that needs to be entered first. How can we help to debug, as this is a blocker issue for our product.
Hmm, after changing to our own theme breath that is didn't happen. Might be related to https://bugs.kde.org/show_bug.cgi?id=483163
(In reply to Philip Müller from comment #3) > Hmm, after changing to our own theme breath that is didn't happen. Might be > related to https://bugs.kde.org/show_bug.cgi?id=483163 I can also confirm that changing to the Oxygen theme (from Breeze) solves the issue. Unfortunately it isn't really a solution. Perhaps it is related to Breeze then?
> I can also confirm that changing to the Oxygen theme (from Breeze) solves the issue. Unfortunately it isn't really a solution. Perhaps it is related to Breeze then? This is probably: https://bugs.kde.org/show_bug.cgi?id=483163 Change your Plasma Style (not global theme) to either Breeze Dark or Breeze Light. That should fix the issue.
(In reply to duha.bugs from comment #5) > > I can also confirm that changing to the Oxygen theme (from Breeze) solves the issue. Unfortunately it isn't really a solution. > Perhaps it is related to Breeze then? > > This is probably: https://bugs.kde.org/show_bug.cgi?id=483163 > > Change your Plasma Style (not global theme) to either Breeze Dark or Breeze > Light. That should fix the issue. Thanks for the suggestion! I can confirm that this indeed did solve my issue. I wish you a nice rest of the day. *** This bug has been marked as a duplicate of bug 483163 ***