And there we have the bisect result:
>git bisect good a5872ca0a6f5e889d628b2946e550c7d0e892430 ddf6f9a4c9fb1c72ea2e8d196c9a580a8e914dbd is the first bad commit commit ddf6f9a4c9fb1c72ea2e8d196c9a580a8e914dbd Author: Dave Airlie <[email protected]> Date: Mon Dec 8 13:23:37 2014 +1000 drm/i915: resume MST after reading back hw state commit e7d6f7d708290da1b7c92f533444b042c79412e0 upstream. Otherwise the MST resume paths can hit DPMS paths which hit state checker paths, which hit WARN_ON, because the state checker is inconsistent with the hw. This fixes a bunch of WARN_ON's on resume after undocking. Signed-off-by: Dave Airlie <[email protected]> Reviewed-by: Daniel Vetter <[email protected]> Signed-off-by: Jani Nikula <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> :040000 040000 692369dcf6b67c2b69d16bffeba828431067b128 99ccabef6d1cb9b5092025a4670a2e00e92b87a7 M drivers ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1454160 Title: External monitor is disabled after resume To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1454160/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
