Bug 104830

Summary:	[CI] igt@kms_fbcon_fbt@fbc - dmesg-warn - ERROR [CONNECTOR:77:eDP-1] Link Training failed at link rate = 540000, lane count = 4
Product:	DRI	Reporter:	Marta Löfstedt <marta.lofstedt>
Component:	DRM/Intel	Assignee:	Intel GFX Bugs mailing list <intel-gfx-bugs>
Status:	CLOSED WORKSFORME	QA Contact:	Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity:	normal
Priority:	medium	CC:	intel-gfx-bugs
Version:	XOrg git
Hardware:	Other
OS:	All
See Also:	https://bugs.freedesktop.org/show_bug.cgi?id=104753
Whiteboard:	ReadyForDev
i915 platform:	GLK	i915 features:	display/Other

Description Marta Löfstedt 2018-01-29 08:40:49 UTC

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3686/shard-glkb4/igt@kms_fbcon_fbt@fbc.html

<7>[  383.652823] [drm:intel_dp_start_link_train [i915]] Clock recovery check failed, cannot continue channel equalization
<3>[  383.652925] [drm:intel_dp_start_link_train [i915]] *ERROR* [CONNECTOR:77:eDP-1] Link Training failed at link rate = 540000, lane count = 4

Comment 1 Marta Löfstedt 2018-01-29 08:44:45 UTC

Note, bug 104827 have similar error log in that case it is preceded by:

<7>[  312.395802] [drm:intel_dp_start_link_train [i915]] Channel equalization failed 5 times

I keep these 2 bugs separated until there is more data indicating that it could be the same issue.

Comment 2 Marta Löfstedt 2018-03-02 07:29:22 UTC

Last seen CI_DRM_3686: 2018-01-26 / 281 runs ago

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