Ubuntu
plasma-workspace package

  1. Noble (24.04)
  2. Bug #1629543
  3. Comment #5

Comment 5 for bug 1629543

Revision history for this message
Open Sense Solutions (opensense) wrote : Re: KDE does not start when using lightdm

I ran into the same problem in 20.04 after switching to lightdm and it took me a while to figure out.

Just as Simon pointed out:
/usr/share/lightdm/lightdm.conf.d/40-kde-plasma-kf5.conf
should have:
user-session=plasma
instead of
user-session=kde-plasma-kf5
since there is no kde-plasma-kf5.desktop in /usr/share/xsessions

I understand that most people aren't switching the display manager but this is such an easy fix I'd hope that it's done to save a lot of frustration for the few that do.