Given that it only occurs with DRI enabled, this points to a kernel drm bug. Refiling.
If you can still reproduce this you may want to attach kernel logs, etc. Try running apport-collect 853057 ** Package changed: xserver-xorg-video-intel (Ubuntu) => linux (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/853057 Title: [GM965] reproducible: watching video with DRI will freeze X To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/853057/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
