Hi crs, I found the tags in git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git . Which will help you to bisect. I had a look at the commits between 3.18.3 and 4. The two very last commits before 3.18.4 are my primary suspects:
commit 6b49734139bad7703ccdf0bded005c605f28ca61 Author: Greg Kroah-Hartman <[email protected]> Date: Mon Mar 18 13:16:44 2013 -0700 Revert "drm/i915: reorder setup sequence to have irqs for output setup" Revert commit 2a9810441fcc26cf3f006f015f8a62094fe57a90 which is commit 52d7ecedac3f96fb562cb482c139015372728638 upstream. This caused problems in 3.8-stable, but all is fine in 3.9-rc. Signed-off-by: Greg Kroah-Hartman <[email protected]> Cc: Imre Deak <[email protected]> Cc: Daniel Vetter <[email protected]> commit 2909d2604809e056e5fe3ee102c42cc7899b1739 Author: Greg Kroah-Hartman <[email protected]> Date: Mon Mar 18 13:13:39 2013 -0700 Revert "drm/i915: enable irqs earlier when resuming" This reverts commit 31f14f4219d2a74b7a6d86c7798f49141b5eccbe which was commit 15239099d7a7a9ecdc1ccb5b187ae4cda5488ff9 upstream. It caused problems in the 3.8-stable series, but 3.9-rc is just fine. Signed-off-by: Greg Kroah-Hartman <[email protected]> Cc: Chris Wilson <[email protected]> Cc: Mika Kuoppala <[email protected]> Cc: Ilya Tumaykin <[email protected]> Cc: Daniel Vetter <[email protected]> Not only are these the only commits mentioning i915, in addition, the diffs seem to remove some workarounds that set a enable_hotplug_processing; to false... So, bisecting could probably be limited to trying the commit before 2909d2604809e056e5fe3ee102c42cc7899b1739, that commit, and the following commit. I think it should be rather obvious what is going wrong for someone who is at the slightest familiar with this code. -- 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
