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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [CI][SHARDS] igt@kms_color@pipe-[abc]-ctm-max - fail - Failed assertion: test_pipe_ctm(data, primary, red_green_blue, full_rgb, ctm)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108147#c14">Comment # 14</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [CI][SHARDS] igt@kms_color@pipe-[abc]-ctm-max - fail - Failed assertion: test_pipe_ctm(data, primary, red_green_blue, full_rgb, ctm)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108147">bug 108147</a>
from <span class="vcard"><a class="email" href="mailto:martin.peres@free.fr" title="Martin Peres <martin.peres@free.fr>"> <span class="fn">Martin Peres</span></a>
</span></b>
<pre>The IGT patch is merged:
commit 64d0ff7247497ae6d726e4535fe74d4bb6ae914a (HEAD -> master, origin/master,
origin/HEAD)
Author: Uma Shankar <<a href="mailto:uma.shankar@intel.com">uma.shankar@intel.com</a>>
Date: Wed Apr 3 17:50:10 2019 +0530
tests/kms_color: Fix CRC mismatch issues with ctm test
Due to Gamma/Degamma limitation wrt representation of intermediate
values between 0 and 1.0 causing rounding issues and inaccuracies,
applying linear gamma affects crc. This patch fixes the same by
making ctm max test independent of gamma/degamma.
v2: Disable degamma/gamma programming for ctm max test as it
leads to crc mimsmatch. Limiting it to this test case alone as
other tests need it to be enabled, hence not touching those
scenarios.
v3: Fixed a fumble with compilation.
v4: Disabling degamma and gamma for ctm max tests, after the logic
in kernel has been updated by Ville's series.
v5: Disabled gamma/degamma for all ctm tests as suggested by Ville.
v6: Restricting disabling of linear gamma luts for ctm max test.
Updated the commit message and comment as suggested by Daniel.
Bugzilla: <a class="bz_bug_link
bz_status_NEW "
title="NEW - [CI][SHARDS] igt@kms_color@pipe-[abc]-ctm-max - fail - Failed assertion: test_pipe_ctm(data, primary, red_green_blue, full_rgb, ctm)"
href="show_bug.cgi?id=108147">https://bugs.freedesktop.org/show_bug.cgi?id=108147</a>
Signed-off-by: Uma Shankar <<a href="mailto:uma.shankar@intel.com">uma.shankar@intel.com</a>>
Acked-by: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
Uma, please do the same when the kernel patch lands and then you can close the
bug. I'll close it in cibuglog when I can verify this is indeed fixed.</pre>
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