[Bug 112212] Commit 0c06fa15600 (Add support of BT.2020 Colorimetry to DP MSA) causing 4K monitor corruption

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=112212

Lakshmi <lakshminarayana.vudum at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      i915 features|                            |display/Other
                 CC|                            |elongbug at gmail.com
             Status|NEW                         |NEEDINFO

--- Comment #3 from Lakshmi <lakshminarayana.vudum at intel.com> ---
(In reply to Kenneth C from comment #0)
> Created attachment 145885 [details]
> Working display after revert
> 
> See attached pictures; the corrupted one has this named commit in it (I'm
> running the drm-tip as of 14a672b77a). It only affects my 4K monitor (LG
> 27UD59-B). If you need more info, let me know.

Can you please attach the full dmesg with and without the commit with kernel
parameters drm.debug=0x1e log_buf_len=4M. This might be useful for debugging.

CC'ing GG anyway.

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