Workaround for me is returning to the previous acceleration setup (uxa instead of sna):
$ cat /etc/X11/xorg.conf.d/20-intel.conf Section "Device" Identifier "Card0" Driver "Intel" Option "AccelMethod" "uxa" EndSection I added that file, restarted X and no more crashes and better video performance (e.g. watching movies with Totem). I hope it helps someone until Ubuntu/Intel fix sna. C. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1492764 Title: [drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1492764/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs