I’ve noticed several issues on this forum where people reported they had a blank screen with a loader and a mouse pointer only, after they would logout and log back in.
I was also affected by this issue and after I applied the two crucial changes, I can login now:
However, when I restart my Manjaro KDE, I usually wait for only 2-3s after the login screen to see my desktop up and running - but when I logout and login again, then I need to wait for more than 100s staring at the dark screen with a loader and a mouse pointer before I can see my desktop.
Whilst my system hangs during login, I opened another TTY to check my processor usage - it peaks within the first 5 seconds to 10.5%, the rest of the time it averages to 0.3%. My memory usage is also low.
I checked systemd-analyze critical-chain, but found nothing, since it boots normally… However I just found this within my Xorg.0.log:
[ 4.236] (II) systemd-logind: logind integration requires -keeptty and -keeptty was not provided, disabling logind integration
Another interesting obesrvation: after a long waiting I could successfully login, but my KWin Tiling Window Manager doesn’t seem to work within that particular session.
Why is this happening and what should I do to resolve it?
I had the same problems with kernel 5.8 and then I installed kernel 5.4.
For a long time I had no login/logout problems at all.
Today the login stuck for ~ 10 seconds and then it continued.
I continued to test logout/login multiple times with completely different results. This bug is not consistent, e.g.:
reboot > login as a new user A > logout > login > huge lag > system seems to work normally > logout > login as my default user B > huge lag > systems seems to work normally > logout > login as B > no lag(!) > systems seems to work normally > logout > login as B > huge lag > can’t see my desktop normally, can’t minimize the only window of Rambox, I could just go to TTY to reboot the system > login as B > logout > login as B > huge lag > not all services has been loaded and my tiling window manager doesn’t work > shutdown
Good news for this bug is that the KDE developers have tested a clean install of Fedora KDE spin and this particular bug is reproducible OOTB, both before and after full system upgrades. They concluded it breaks multi-user desktops and should be looked at with higher priority.
You could check the status of the bug at the URL above.
Whilst my system hangs during login, I opened another TTY to check my processor usage - it peaks within the first 5 seconds to 10.5%, the rest of the time it averages to 0.3%. My memory usage is also low.
