To debug this we will need an automated crash report. Please look in /var/crash for crash files and then run:
ubuntu-bug /var/crash/YOURFILE.crash And then tell us here what the ID of the new bug is. ** Changed in: xorg-server (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1754177 Title: [bionic] xserver / startx crashes with Composite Disabled in xorg.conf To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1754177/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp