[Bug 108337] New: [CI][SHARDS] igt@* - dmesg-warn - Disabling FBC due to FIFO underrun.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108337

            Bug ID: 108337
           Summary: [CI][SHARDS] igt@* - dmesg-warn - Disabling FBC due to
                    FIFO underrun.
           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/CI_DRM_4970/shard-apl4/igt@kms_cursor_legacy@cursora-vs-flipa-atomic-transitions-varying-size.html

<6> [728.571118] [IGT] kms_cursor_legacy: starting subtest
cursorA-vs-flipA-atomic-transitions-varying-size
<7> [728.572096] [drm:drm_mode_addfb2] [FB:116]
<7> [728.627318] [drm:drm_mode_addfb2] [FB:117]
<7> [728.642092] [drm:drm_mode_addfb2] [FB:118]
<7> [728.642468] [drm:drm_mode_addfb2] [FB:126]
<7> [728.643308] [drm:drm_mode_addfb2] [FB:138]
<7> [728.691867] [drm:i915_fifo_underrun_reset_write [i915]] Re-arming FIFO
underruns on pipe A
<3> [728.724574] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe A FIFO underrun
<7> [728.725290] [drm:intel_fbc_underrun_work_fn [i915]] Disabling FBC due to
FIFO underrun.
<6> [739.475176] [IGT] kms_cursor_legacy: exiting, ret=0

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