[Bug 102614] [CI][HSW only] *ERROR* PCH transcoder A FIFO underrun | *ERROR* uncleared pch fifo underrun on pch transcoder A

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=102614

--- Comment #29 from Martin Peres <martin.peres at free.fr> ---
https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_27/fi-hsw-4200u/igt@kms_plane_lowres@pipe-c-tiling-none.html

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_28/fi-hsw-4200u/igt@kms_panel_fitting@atomic-fastset.html

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_29/fi-hsw-4200u/igt@kms_panel_fitting@atomic-fastset.html

[  168.296571] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR*
uncleared fifo underrun on pipe A
[  168.296682] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe A FIFO underrun
[  169.796559] [drm:intel_check_cpu_fifo_underruns [i915]] *ERROR* fifo
underrun on pipe B
[  170.931908] [drm:intel_check_cpu_fifo_underruns [i915]] *ERROR* fifo
underrun on pipe C

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_28/fi-hsw-4200u/igt@kms_plane_lowres@pipe-c-tiling-x.html

[  239.614337] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR*
uncleared fifo underrun on pipe C
[  239.614715] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun

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