Bug 104727

Summary: [CI] [BXT only] igt@* - dmesg-warn: *ERROR* CPU pipe [A|B|C] FIFO underrun
Product: DRI Reporter: Marta Löfstedt <marta.lofstedt>
Component: DRM/IntelAssignee: Intel GFX Bugs mailing list <intel-gfx-bugs>
Status: CLOSED WORKSFORME QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: normal    
Priority: high CC: intel-gfx-bugs
Version: DRI git   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: BXT i915 features: display/Other
Bug Depends on:    
Bug Blocks: 105980    

Description Marta Löfstedt 2018-01-22 08:34:21 UTC
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3660/shard-apl4/igt@testdisplay.html

[  170.894200] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Comment 1 Marta Löfstedt 2018-02-14 07:43:47 UTC
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3766/shard-apl3/igt@kms_plane_scaling@pipe-c-scaler-with-pixel-format.html

[  355.613484] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe C FIFO underrun
Comment 2 Marta Löfstedt 2018-03-09 12:39:56 UTC
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3903/shard-apl8/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-shrfb-msflip-blt.html

[  572.179877] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Comment 3 Marta Löfstedt 2018-04-12 07:42:01 UTC
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_4046/shard-apl1/igt@kms_flip@flip-vs-panning.html

[  139.493832] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Comment 4 Martin Peres 2018-06-15 08:47:13 UTC
It used to happen once per month, and nothing for the past two months... Let's close this bug then!
Comment 5 Jani Saarinen 2018-06-19 14:26:02 UTC
Closing, thanks.

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