Bug 1196783

User-Agent:       Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0
Build Identifier: 

I installed Leap 15.4 Beta yesterday, on a laptop.  As part of my setup, I did turn off the screen locking.

After I leave the system idle for 10 minutes or more, then when I return the screen is black.  This is expected from the power settings.  So I hit the CTRL key or move the mouse.  I see a black screen with a mouse cursor.

I am able to get to a virtual console with CTRL-ALT-F1 (so I can reboot that way).  If I try CTRL-ALT-F7, then I see the KDE desktop.  But the keyboard behaves as if dead.  I cannot do anything, except CTRL-ALT-F1 followed by CTRL-ALT-DEL to reboot.

I have tried switching to GDM instead of SDDM.  The same behavior, except that I need to use CTRL-ALT-F2 to see the non-responsive KDE desktop.

If I disable the screen power savings (defaults to 10 minutes), then everthing is fine with that disabled.  But I don't think that's a good practice.

The behavior looks a little as if the desktop has locked, but there is no unlock screen.  So I turned the screen locking back on, and set it for 9 minutes (just before the power savings takes place).  And that seems to work.  Now I do get an unlock screen, and that gets me going again.  But it is a bit annoying to have frequently unlock, although that is not as annoying as having to reboot.

As a cross check, I have Tumbleweed installed on that same computer, and that seems to have the same KDE version.  But everything behaves normally with Tumbleweed.  It is only on Leap 15.4 Beta that I have this problem.


Reproducible: Always