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  • drm
  • intelintel
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  • #44
Closed
Open
Issue created Sep 08, 2017 by Bugzilla Migration User@bugzilla-migration

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

Submitted by Martin Peres @mupuf

Assigned to Intel GFX Bugs mailing list

Link to original bug (#102614)

Description

When running CI_DRM_3056, the machine shard-hsw generated the following dmesg when running igt@kms_flip@basic-flip-vs-dpms:

[ 22.635021] [drm:intel_set_pch_fifo_underrun_reporting [i915]] ERROR uncleared pch fifo underrun on pch transcoder A
[ 22.635097] [drm:intel_pch_fifo_underrun_irq_handler [i915]] ERROR PCH transcoder A FIFO underrun

Full logs: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3056/shard-hsw3/igt@kms_flip@basic-flip-vs-dpms.html

Blocking

  • Bug 105980

See also

  • https://bugs.freedesktop.org/show_bug.cgi?id=104934
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