Bug 109982

Summary: [CI][SHARDS] igt@i915_pm_rpm@i2c - dmesg-warn - *ERROR* dp aux hw did not signal timeout!
Product: DRI Reporter: Martin Peres <martin.peres>
Component: DRM/IntelAssignee: Vanshidhar Konda <vanshidhar.r.konda>
Status: CLOSED DUPLICATE QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: normal    
Priority: high CC: intel-gfx-bugs
Version: XOrg git   
Hardware: Other   
OS: All   
Whiteboard: ReadyForDev
i915 platform: ICL i915 features: display/DP

Description Martin Peres 2019-03-12 16:24:22 UTC
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_5726/shard-iclb2/igt@i915_pm_rpm@i2c.html

<3> [1297.810215] [drm:intel_dp_aux_xfer [i915]] *ERROR* dp aux hw did not signal timeout!
Comment 1 CI Bug Log 2019-03-12 16:24:59 UTC
The CI Bug Log issue associated to this bug has been updated.

### New filters associated

* ICL: igt@i915_pm_rpm@i2c - dmesg-warn - *ERROR* dp aux hw did not signal timeout!
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_5726/shard-iclb2/igt@i915_pm_rpm@i2c.html
Comment 2 Vanshidhar Konda 2019-03-14 20:50:57 UTC
Submitted a patch to change the DRM_ERROR to DRM_WARN

https://patchwork.freedesktop.org/series/58012/
Comment 3 Martin Peres 2019-04-01 13:09:40 UTC
This bug is only happening on iclb2.

As explained in https://bugs.freedesktop.org/show_bug.cgi?id=110271, this might indicate a HW issue with the pre-production machine, as opposed to the platform.

Keeping the priority high because of the potential high customer impact (as per Daniel's comment), in order to investigate potential fixes quickly.
Comment 4 Martin Peres 2019-04-12 13:18:07 UTC
As per comment https://bugs.freedesktop.org/show_bug.cgi?id=110271#c6, this seems to be a real issue, and both of these bugs could be an outcome of it. Closing this bug as duplicate.

*** This bug has been marked as a duplicate of bug 110271 ***
Comment 5 CI Bug Log 2019-09-04 08:37:57 UTC
The CI Bug Log issue associated to this bug has been archived.

New failures matching the above filters will not be associated to this bug anymore.
Comment 6 Martin Peres 2019-09-04 08:38:27 UTC
Seen 9 times in 19 runs, now not seen for over 40 runs. Closing!

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