** Description changed: - Switching between extended/mirror modes when a HDMI monitor is plugged - in causes a system hang on at least some machines, like my SKL-Y + Switching between extended/mirror modes when an external monitor is + plugged in causes a system hang on at least some machines, like my SKL-Y ultramobile test system. It needs a backport of an upstream commit from 4.3, modified to work on 4.2-based i915_bpo: commit f015c5518879fb3e578caaa63806617468a24045 Author: Ville Syrjälä <[email protected]> Date: Wed Jun 24 22:00:02 2015 +0300 - drm/i915: Split atomic wm update to pre and post variants + drm/i915: Split atomic wm update to pre and post variants -- the watermark stuff is Skylake-specific, so can't regress BSW/BDW. This has been tested on a number of SKL machines now, fixing the bug.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1493746 Title: [SKL, i915_bpo] System hang when switching between extended/mirror modes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1493746/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
