Bug 92442 - [DP-MST] i7-5600U Dell E7450, external black screen after resume from suspend, still in 4.5.1
Summary: [DP-MST] i7-5600U Dell E7450, external black screen after resume from suspend...
Status: CLOSED FIXED
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: DRI git
Hardware: Other All
: medium normal
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-10-13 06:24 UTC by noga.dany
Modified: 2017-07-24 22:44 UTC (History)
3 users (show)

See Also:
i915 platform: BDW
i915 features: display/DP MST

Attachments
4.4.0, still doesn't work (244.28 KB, text/plain)
2016-01-19 08:55 UTC, noga.dany 		no flags Details
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Description noga.dany 2015-10-13 06:24:39 UTC 
[DP-MST] i7-5600U Dell E7450, external black screen after resume from suspend, still in 4.2.3

This bug is present from devel 3.19 and from one of stable updates in 3.18. In bugzilla is this bug closed as: "If the problem persists with latest kernels, please file a bug at the freedesktop.org bugzilla [1], referencing this bug."

Fails on kernel 4.2.3 and on 4.3 RC4. Works on 3.17.* and on 3.18.0

Issue from 4.1.0 and from 4.2.0, second monitor blinks every minute is in 4.2.3 fixed
Comment 1 Jani Nikula 2016-01-14 09:12:49 UTC 
Please re-test running v4.4. If the problem persists, please add drm.debug=14 module parameter, and attach dmesg.
Comment 2 noga.dany 2016-01-19 08:55:04 UTC 
Created attachment 121129 [details]
4.4.0, still doesn't work
Comment 3 noga.dany 2016-04-20 23:02:41 UTC 
4.5.1, still doesn't work. Is need to include new dmesg logs?
Comment 4 noga.dany 2016-05-18 16:14:57 UTC 
It looks it is fixed with 4.6

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