[Bug 105458] [CI] igt at kms_ccs@pipe-[a|b]-crc-sprite-planes-basic - fail - Test assertion failure function try_config, Failed assertion: ret == 0

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Sep 21 10:56:44 UTC 2018


https://bugs.freedesktop.org/show_bug.cgi?id=105458

--- Comment #5 from Juha-Pekka Heikkilä <juhapekka.heikkila at gmail.com> ---
This test is hitting the limits of hw. At the point of failure screen
resolutions are quite high (for example 2400x1600) dmesg gets such messages as

<7>[  906.448757] [drm:skl_compute_wm_levels [i915]] Requested display
configuration exceeds system watermark limitations
<7>[  906.448920] [drm:skl_compute_wm_levels [i915]] [PLANE:33:plane 2A] blocks
required = 33/32, lines required = 8/31

I can make this test to pass by disabling display WA #1126 but then I'm be
working against the spec and mis-adjusting watermarks for level 0 could show up
in wrong ways in some other use case.

I'll make this test to skip if setup phase fails.

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