So the desktop is crashing and I can't diag your system. Review the tail end of the journal for clues.
You may try creating a keyboard shortcut to logoff and give it a chance to do a controlled session exit.
In the meantime, here are other hammers, a rubber one and a sledge to use from the alternate tty
loginctl terminate-session user
systemctl stop getty@ttyX
...and restart
systemctl start getty@ttyX
Statistics: Posted by CwF — 2026-02-05 19:38