[Bug 95476] [BXT-P] i915 driver overwrites the DDI PHY register for the 1366x768 panel with incorrect values

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Jun 13 16:30:02 UTC 2016


https://bugs.freedesktop.org/show_bug.cgi?id=95476

Imre Deak <imre.deak at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|NEEDINFO                    |RESOLVED

--- Comment #6 from Imre Deak <imre.deak at intel.com> ---
(In reply to Tarun Vyas from comment #5)
> I tried booting a Chromium image with the latest drm-intel-next and *as
> expected*, the 1366x768 panel *did not* light up with "link training errors"
> in the log.
> 
> Subsequently, I applied the 6 patches starting @
> https://patchwork.freedesktop.org/patch/92202/ and ending @
> https://patchwork.freedesktop.org/patch/92407/ and built another Chromium
> image. This time the 1366x768 panel lighted up, so that patches are helping.
> Will have to do more regression testing.

The patch is merged now to drm-intel-nightly, so closing this for now. Please
reopen this if you still see the problem.

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