[Bug 110579] [CI][SHARDS] igt at kms_plane_cursor@pipe-[abc]-(overlay|viewport)-size-(64|128|256) - fail - Failed assertion: !mismatch

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110579

--- Comment #3 from Ville Syrjala <ville.syrjala at linux.intel.com> ---
Rock, meet hardplace. Gamma is fixed by the HDR_MODE bit but that means the crc
from a hdr plane no longer matches the crc from a sdr/cursor plane. These tests
all try to compare software rendered reference from the primary plane (which is
a hdr plane) with hardware generated results from the cursor or sdr plane.

Unless there's yet another unknown chicken bit we can poke I don't think we can
fix this if we want to keep HDR_MODE enabled. We might just have to change the
tests to grab the reference using an sdr plane. That unfortunately means adding
more platform specific knowledge to the tests :(

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