[Bug 96321] [CHV] HDMI detection fails, black screen after boot

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96321

Ville Syrjala <ville.syrjala at linux.intel.com> changed:

           What    |Removed                     |Added
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           Assignee|intel-gfx-bugs at lists.freede |ville.syrjala at linux.intel.c
                   |sktop.org                   |om

--- Comment #7 from Ville Syrjala <ville.syrjala at linux.intel.com> ---
Created attachment 124269
  --> https://bugs.freedesktop.org/attachment.cgi?id=124269&action=edit
[PATCH] drm/i915: Check VBT for port presence in addition to the strap on
VLV/CHV

The dump showed HDMI C being active, so I guess we just have to trust the VBT
on this one. This patch should achieve the desired result.

I've pushed this to a branch at
git://github.com/vsyrjala/linux.git chv_dig_port_vbt
as well. You can use that, or grab drm-intel-nightly from the official place
and apply the patch manually. It probably won't apply cleanly to anything else
since we've had recent changes in the relevant code.

Please test.

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