SUMMARY Plasma 6 with X11 after auto-locking screen and shading blinks and almost unresponsive STEPS TO REPRODUCE 1. Close a lid of laptop with auto-locking configure on Plasma 6 with X11 2. Open the lid, the screen is blinking and laptop is unresponsive almost OBSERVED RESULT The screen is blinking EXPECTED RESULT I should see a picture with log-in screen SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: KDE neon 6 (available in About System) KDE Plasma Version: 6.0.0 KDE Frameworks Version: 6.0.0 Qt Version: 6.6.2 ADDITIONAL INFORMATION
I have exactly the same issue on a laptop with intel/nvidia combo, on X11 (not able to find a way to make wayland work for now), if I lock the screen (Ctrl+Alt+L), then I got a black screen instead of my lock screen, and then the screen blinks. From my experience: the screen keeps black if we didn't touch the computer for 1 or 2s, and blinks when we try to move the mouse and type anything on the keyboard. The blinking seems to be caused by the backlight, it's not just a "black picture" with visible mouse, but it seems to be the entire backlight that is powered off, and then powered on, and off, etc...
Forgotten info: This didn't happen before the KDE Neon auto update to Plasma 6...
Thank you for your comments, exactly so.. It black and draw on some milliseconds lock screen if drag mouse or press key on keyboard.
Sorry this happened. Can you update Neon today or tomorrow and try again? Unfortunately the packaging for the 6.0 upgrade was buggy and we have many reports of weird random issues like this that are expected to all go away with the new snapshot.
4 March, 2024, UTC+3 12:53 - The problem is still there...
Does that mean you updated your system and it's still happening?
(In reply to Nate Graham from comment #6) > Does that mean you updated your system and it's still happening? Sorry, that I was not clear. Sure, exactly. I installed updates, turned on screen locking, locked my laptop, and the issue the same, and very aggressive, I ran to shutdown my laptop by long-press of hardware shutdown button.
Ok, thanks. Could you attach a phone recording of what the screen looks like exactly?
I want to add some details... The picture of the issue is changing a little if chekboxes on screen [2.png] is not checked - in this case after locking I see a black screen, pressing hardware power button shows lock screen in normal mode, I'm able to iterate there, but when entering password and unlocking I see the same blinking in unlocked session. Note that this happened on X11 session, NOT ON WAYLAND. Recording [blinking.mp4] was made both with [1.png] and [2.png] settings. I closed lid of laptop, waited some seconds, and opened the lid.
Created attachment 166409 [details] [1.png]
Created attachment 166410 [details] [2.png]
Created attachment 166411 [details] [blinking.mp4]
(In reply to Igor Mironchik from comment #12) > Created attachment 166411 [details] > [blinking.mp4] This is a link to YouTube....
05 March, 2024 UTC+3 19:45 The rules change a little. After locking and turning off a screen, I'm with some difficulties able to login, the screen is not blinking, but there happens something difficult to describe. With some dance I can see a field for password, but after successful login I see that blinking of the screen.
13 March, 2024 UTC+3 15:12 Fixed!