I'm using Ubuntu 18.04 on a XU4. On every boot I got the message:
Waiting a short time, xserver started and everything was ok.EXT-4 fs (mmcblk1p2): re-mounted
As I tried to boot today, the same message appeared, but no xserver started. I was asked to log on as root or press ctrl-d to continue. Continuing doesn't work, shows the same message. Logging on as root works, and I can startx, but there is no network, no samba... I am usually running tvheadend to support several raspis with videos, but without any network...
In /root/.xsession-errors I found
Could this be the cause of the problem? And how can I fix it?libGL error: failed to create dri screen
libGL error: failed to load driver: exynos
Both filesystems on the sd-card have been checked on another ubuntu computer and seem to be ok.
Thank you for your help!