gdm could not write to your authorization file

[Alexander Apprich]

Yong Chu Eu () wrote:
> HI,
> 
> I have problem to login KDE(even with root), even i had deleted all file 
> in /tmp, but i can login as root under last Default System Session
> 
> my error message stated as below:
> 
> /etc/X11/gdm/preSession/Default:Registering your session with wtmp and utmp
> /etc/X11/gdm/PreSession/Default: Running : /usr/X11R6/bin/sessreg -a -w 
> /var/run/utmp -x  "/var/gdm/:0.Xservers" -h "" -1 ":0" "root"
> Not Enought free disk space on /tmp
> 

What is the output of

   df -hl

??

Alex