I have a problem with X. Right after login, I briefly see the icons on the desktop and my wallpaper. Immediately after that I find myself on the login screen again.

If I log in on another tty and try to start the Xserver with startx, it stops immediately without giving me any errors.

As window manager I use GDM3 and desktop environment is Mate. Any Ideas?

  • Have you examined the contents of the ~/.xsession-errors file? – steeldriver Jan 2 '20 at 23:16

Two things to check. Disk space (check if you have space left):

$ df

and permissions of /tmp (check if the first field is drwxrwxrwt):

 $ ls -ld /tmp

If the permissions on /tmp are not right, you can do:

$ sudo chmod 1777 /tmp
  • permissions of /tmp are correct and my disk still has 500GB free. – qwertbert23 Jan 2 '20 at 21:00

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