Found a related bug report here: https://bugs.freedesktop.org/show_bug.cgi?id=77074 Seems to be fixed, but I'll have to wait for the next LTS enablement stack (14.04.3) to check.
The temporary fix is to switch to UXA, as the acceleration method. https://wiki.archlinux.org/index.php/Intel_graphics#SNA_issues ** Bug watch added: freedesktop.org Bugzilla #77074 https://bugs.freedesktop.org/show_bug.cgi?id=77074 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1429230 Title: Aegisub causes X-server to crash To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/aegisub/+bug/1429230/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs