> On 3/25/26 6:07 PM, Roger Lynn wrote: >> Restarting xfwm4 from another virtual console does NOT help. The >> problem goes away after restarting lightdm, but this is obviously not >> an adequate solution. > > It's not an adequate solution, but it *does* hint at where the problem > might be: lightdm.
I think this probably fixes it because it restarts the xserver, so everything gets reset. >> I haven't managed to find any relevant log messages in dmesg, syslog or >> Xorg.0.log. > > Is there anything in `/var/log/lightdm/` that might have more > information? You can also check the journal for hints: > > `$ journalctl -u lightdm.service` The only things in there seem to relate to unlocking after putting the computer into standby and waking it up again or switching VT. But, having said in another email just now that it doesn't seem to be caused by system load, it might happen more often when using an xterm. Thanks, Roger

