NACK (Cosmic EOL): [PATCH 0/2][SRU][C] drm/i915: Fix hotplug issues
Connor Kuehl
connor.kuehl at canonical.com
Thu Aug 8 18:06:55 UTC 2019
On 7/23/19 12:38 AM, You-Sheng Yang wrote:
> BugLink: http://bugs.launchpad.net/bugs/1835001
>
> [Impact]
> System does not always auto detect disconnection of external monitor on
> Intel VGA.
>
> [Fix]
> Two changes from drm-intel tree are necessary to introduce hotplug
> retrying to fix this issue. They are:
>
> * drm/i915: Add support for retrying hotplug
> * drm/i915: Enable hotplug retry
>
> [Test Case]
> 1. open "system settings > display settings"
> 2. connect laptop to an external HDMI monitor via HDMI port & cable
> 3. unplug the HDMI cable
> 4. check if "display settings" automatically detects the removal of the
> external monitor
>
> [Regression potential]
> Medium. For all the prerequisites they have been landed since 4.18, and
> these two patches will only be merged some time later. Basically it
> turns a currently existing kernel work to a delayed work so that it may
> retry probing HDMI hotplug status.
>
> Imre Deak (1):
> drm/i915: Add support for retrying hotplug
>
> José Roberto de Souza (1):
> drm/i915: Enable hotplug retry
>
> drivers/gpu/drm/i915/i915_debugfs.c | 2 +
> drivers/gpu/drm/i915/i915_drv.h | 3 +-
> drivers/gpu/drm/i915/intel_ddi.c | 33 +++++++++++++---
> drivers/gpu/drm/i915/intel_dp.c | 19 ++++++---
> drivers/gpu/drm/i915/intel_drv.h | 16 ++++++--
> drivers/gpu/drm/i915/intel_hdmi.c | 28 ++++++++++++-
> drivers/gpu/drm/i915/intel_hotplug.c | 59 ++++++++++++++++++++++------
> drivers/gpu/drm/i915/intel_sdvo.c | 8 ++--
> 8 files changed, 136 insertions(+), 32 deletions(-)
>
Cosmic went EOL around the same time this patch was sent.
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