> On Tuesday 23 January 2018 12.53:11 Uwe Brauer wrote: 
 
    > Just a suggestion: check that you are running tdm. I had 
    > this sort of  behaviour when running TDE with gdm. 
 
Thanks

 ps aux | grep tdm

Returned
root      1042  0.0  0.0 350548  6176 ?        SLsl 15:06   0:00 
/usr/sbin/lightdm root      1064  2.5  1.2 410260 100448 tty7 
Ssl+ 15:06   0:12 /usr/lib/xorg/Xorg -core :0 -seat seat0 -auth 
/var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch root 
1191  0.0  0.0 248908  6792 ?        Sl   15:06   0:00 lightdm 
--session-child 12 19 oub       3879  0.0  0.0  15444   920 pts/2 
S+   15:14   0:00 grep tdm 

That is ok?