Public bug reported:
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
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 <ville.syrj...@linux.intel.com>
Date: Wed Jun 24 22:00:02 2015 +0300
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.
** Affects: linux (Ubuntu)
Importance: High
Status: In Progress
** Affects: linux (Ubuntu Vivid)
Importance: Critical
Assignee: Timo Aaltonen (tjaalton)
Status: In Progress
** Also affects: linux (Ubuntu Vivid)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Importance: Undecided => High
** Changed in: linux (Ubuntu)
Status: New => In Progress
** Changed in: linux (Ubuntu Vivid)
Importance: Undecided => Critical
** Changed in: linux (Ubuntu Vivid)
Status: New => In Progress
** Changed in: linux (Ubuntu Vivid)
Assignee: (unassigned) => Timo Aaltonen (tjaalton)
--
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https://bugs.launchpad.net/bugs/1493746
Title:
[SKL, i915_bpo] System hang when switching between extended/mirror
modes
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Vivid:
In Progress
Bug description:
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
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 <ville.syrj...@linux.intel.com>
Date: Wed Jun 24 22:00:02 2015 +0300
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.
To manage notifications about this bug go to:
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