Update: I stopped the gdm3 service and started a freshly installed slim login manager. I comes right up, no issues.
Starting the GNOME session from slim, however, results in immediate failure. This is syslog from the last message of slim to the X server shutdown: Nov 4 09:49:56 meiner slim[8940]: /usr/bin/X11/xauth: file /home/mih/.Xauthority does not exist Nov 4 09:49:56 meiner org.a11y.Bus[9347]: Activating service name='org.a11y.atspi.Registry' Nov 4 09:49:56 meiner org.a11y.Bus[9347]: Successfully activated service 'org.a11y.atspi.Registry' Nov 4 09:49:56 meiner org.a11y.atspi.Registry[9373]: SpiRegistry daemon is running with well-known name - org.a11y.atspi.Registry Nov 4 09:49:56 meiner gnome-terminal-[9379]: gnome-terminal-server: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0. Nov 4 09:49:56 meiner org.a11y.atspi.Registry[9373]: XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":0.0" Nov 4 09:49:56 meiner org.a11y.atspi.Registry[9373]: after 21 requests (19 known processed) with 0 events remaining. Nov 4 09:49:56 meiner org.gtk.vfs.Daemon[9347]: A connection to the bus can't be made Nov 4 09:49:58 meiner kernel: [ 249.268908] [drm] Reducing the compressed framebuffer size. This may lead to less power savings than a non-reduced-size. Try to increase stolen memory size if available in BIOS. Nov 4 09:49:58 meiner slim[8940]: (II) Server terminated successfully (0). Closing log file. On Fri, Nov 3, 2017 at 5:02 PM, Michael Hanke <michael.ha...@gmail.com> wrote: > Hi, > > same here, after upgrade to buster no X anymore. Normal start works, but > ends at terminal login. Manual startx makes the screen flicker briefly, then > back to terminal. X log contain no errors (EE). > > Downgrade to stretch didn't change the situation in any way. Going back from > linux 4.13 to 4.8 had no effect either. > > During downgrade gconf2 choked (triggers hung and never completed). During > upgrade I think I saw some gconf error message too, but I cannot find a > trace of them anywhere. > > Any advice would be highly appreciated. > > Thanks in advance > > Michael > -- Michael Hanke http://psychoinformatics.de