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[Only ARL_S] igt@fbdev@* - dmesg-warn/dmesg-fail - *ERROR* CPU pipe * FIFO underrun: port,transcoder

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_15324/bat-arls-1/igt@fbdev@info.html

<6> [44.634787] Console: switching to colour dummy device 80x25
<6> [44.634817] [IGT] fbdev: executing
<6> [44.646872] [IGT] fbdev: starting subtest info
<6> [44.646944] [IGT] fbdev: finished subtest info, SUCCESS
<6> [44.649762] [IGT] fbdev: exiting, ret=0
<3> [44.652078] i915 0000:00:02.0: [drm] *ERROR* CPU pipe A FIFO underrun: port,transcoder,
<7> [44.652229] i915 0000:00:02.0: [drm:intel_fbc_underrun_work_fn [i915]] Disabling FBC due to FIFO underrun.
<7> [44.652630] i915 0000:00:02.0: [drm:__intel_fbc_disable [i915]] Disabling FBC on [PLANE:32:plane 1A]
<6> [44.668104] Console: switching to colour frame buffer device 480x135
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