[Bug 106083] [CI] igt at kms_frontbuffer_tracking@* - Test assertion failure function get_sink_crc, Failed assertion: rc != -1

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=106083

Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #1 from Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com> ---
Should not be seen anymore

Author: Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>
Date:   Thu Jul 12 01:09:40 2018 -0700

    tests/frontbuffer_tracking: Do not test sink crc

    eDP sink crc reads use vblank interrupts that cause PSR exit and
    therefore makes them unsuitable for PSR testing. Besides that, reading
    sink CRC via the AUX channel for testing when the HW also is most likely
    is going to be using AUX channel is a recipe for inconsistent test
    results. Thirdly, CRC's have been seen to be noisy or vary across sinks for
    the same driver and test code. We tradeoff the ability to validate what the
    sink is displaying for correctness.

    Cc: Daniel Vetter <daniel at ffwll.ch>
    Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
    Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>
    Reviewed-by: Rodrigo Vivi <rodrigo.vivi at intel.com>

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