[Bug 105331] Dithering doesn't work on HD4600 when using DP

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=105331

Jani Nikula <jani.nikula at intel.com> changed:

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

--- Comment #9 from Jani Nikula <jani.nikula at intel.com> ---
(In reply to Dihan Wickremasuriya from comment #8)
> Thanks for the fix Jani, it works great! I tested on top of 4.4.0 which
> exhibits the same symptom without your patch.

Thanks for testing, the fix has been pushed to drm-intel-next-queued with cc:
stable so it will eventually get backported to stable kernels.

commit 013dd9e038723bbd2aa67be51847384b75be8253
Author: Jani Nikula <jani.nikula at intel.com>
Date:   Wed Jan 13 16:35:20 2016 +0200

    drm/i915/dp: fall back to 18 bpp when sink capability is unknown

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