https://bugs.kde.org/show_bug.cgi?id=483648

            Bug ID: 483648
           Summary: Black Screen With Mouse Cursor At Login
    Classification: Plasma
           Product: kscreenlocker
           Version: 6.0.2
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: [email protected]
          Reporter: [email protected]
  Target Milestone: ---

Created attachment 167250
  --> https://bugs.kde.org/attachment.cgi?id=167250&action=edit
journalctl -b

SUMMARY
After a reboot, there is no login screen, only a mouse cursor that I can move
around. The workaround I found was to drop to a terminal, login, then type
startplasma-wayland. This starts my plasma wayland session correctly and from
then on is exactly the same as it was before I updated to plasma 6.

-I saw other similar bugs that suggested pressing escape twice, but this does
not work for me. 
-https://bugs.kde.org/show_bug.cgi?id=481308 is similar, but I am on wayland. 
-I tried modifying the lock screen settings as suggested there to no avail
-Also tried changing the theme from breeze to some 3rd party theme and that
also has not worked
-This issue is related to the screenlocker; however for me, after logging in
and starting a plasma wayland session from shell, the screen locker works
correctly. It's only upon reboot that I have this problem (something to do with
autologin?)
-https://bugs.kde.org/show_bug.cgi?id=477738 is also similar

STEPS TO REPRODUCE
1. Reboot 
2. Black screen at login with mouse cursor that I can move

OBSERVED RESULT
A black screen at login screen

EXPECTED RESULT
A login screen

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Arch Linux, Plasma 6
KDE Plasma Version: 6.0.2
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2
SDDM: 0.21.0-4
kwin: 6.0.2-3
kscreenlocker: 6.0.2-3
wayland: 1.22.0-1
Kernel: 6.7.9-arch1-1 
AMD CPU/GPU

ADDITIONAL INFORMATION
-I am having a very similar issue that I will probably submit a separate bug
report for on Plasma 6 Mobile. There, I can see the login (which given that its
a phone, is the keypad) and I can type in my pass and login; but after that it
goes to a black screen. The startplasma-wayland workaround *does not* work
here. Instead, I've found that at the black screen, I can open a terminal with
Ctrl+Alt+T and launch applications directly from there. The mobile desktop
never appears.

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