Can you check if there is anything untowards at the end of your dmesg output when this manifests?
Anything like: [22892.778103] [drm:i915_gem_object_bind_to_gtt] *ERROR* GTT full, but LRU list empty or similar complaints about drm, i915 or gem in general? -- [GM45] with EXA compiz animations cause temporary freezes https://bugs.launchpad.net/bugs/320813 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs