The stacktrace looks similar to
https://bugs.freedesktop.org/show_bug.cgi?id=101995 which was fixed in
https://gitlab.freedesktop.org/xorg/xserver/commit/cf7517675
The commit is included in Ubuntu since
https://launchpad.net/ubuntu/+source/xorg-server/2:1.20.0-2ubuntu1 and
is in 18.04 from
Thanks for the bug report. I can't seem to find any similar crash
reports on:
https://errors.ubuntu.com/?release=Ubuntu%2018.04=xorg-
server=year
Can you please follow these instructions to try and generate a formal
crash report?
