[Bug 109350] [CI][SHARDS] igt at kms_cursor_crc@cursor-alpha-(opaque|transparent) - fail - Failed assertion: !mismatch

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109350

--- Comment #10 from Daniel Vetter <daniel at ffwll.ch> ---
Cursor seems to be working in general, but then this alpha testcase is the only
testcase we have in igt (and hence automated CI) to make sure transparent
cursors work. Hence from a sw quality assurance point of view we need to get
this fixed.

Issue might be hw or (imo more likely still) corner case issue in the igt.

Note that if this would get broken somehow for real (which atm we can't tell
because of the noise) it could result in cursors with a ghosting box around
them, which is really annoying. It's how we discovered that gen9 universal
planes have broken alpha blending, and why we're not using them for cursors. So
from a user impact point we really need to be able to validate this properly
and using automated igt.

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