[Bug 109479] New: [CI][DRMTIP] igt at kms_plane_lowres@* + random tests - dmesg-warn / dmesg-fail - *ERROR* uncleared fifo underrun on pipe

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109479

            Bug ID: 109479
           Summary: [CI][DRMTIP] igt at kms_plane_lowres@* + random tests -
                    dmesg-warn / dmesg-fail - *ERROR* uncleared fifo
                    underrun on pipe
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: martin.peres at free.fr
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_201/fi-ivb-3520m/igt@kms_concurrent@pipe-c.html

<3> [242.730954] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR*
uncleared fifo underrun on pipe C
<3> [242.731074] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
<3> [242.731121] [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR*
uncleared pch fifo underrun on pch transcoder C
<3> [242.731146] [drm:cpt_irq_handler [i915]] *ERROR* PCH transcoder C FIFO
underrun

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