Stefan Freyr, kernel 4.6.x is not supported. If you return your OS to the default Ubuntu kernel is this still reproducible?
** Tags added: bios-outdated-1.24 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1598904 Title: X server crashes sporadically with a segfault To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1598904/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs