Bug 91029 - [BDW regression]System starts fail with two monitors
Summary: [BDW regression]System starts fail with two monitors
Status: CLOSED FIXED
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: unspecified
Hardware: All Linux (All)
: high major
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-06-19 08:15 UTC by ye.tian
Modified: 2017-10-06 14:29 UTC (History)
2 users (show)

See Also:
i915 platform:
i915 features:

Attachments
dmesg info (239.98 KB, text/plain)
2015-06-19 08:15 UTC, ye.tian 		no flags Details
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Description ye.tian 2015-06-19 08:15:45 UTC 
Created attachment 116593 [details]
dmesg info

==System Environment==       
-----------------------------------------------------
Regression: Yes
Drm-intel-next-queued branch:
Good commit: 2441f8779e886d74389bf78aad149dc99876a900
Bad  commit: 2da44aae8144b8380f4e45688e570d4c7a4ef2c4

Non-working platforms: BDW

==Kernel==
--------------------------------------------------
commit 186047de2f57b1ed4d1bd52f824b88b25275d378
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Thu Jun 18 18:47:12 2015 +0200

drm-intel-nightly: 2015y-06m-18d-16h-46m-34s UTC integration manifest

==Bug detailed description==
--------------------------------------------------
System starts fail with two monitors on BDW with the latest drm-intel-nightly branch kernel,
It does not exist on latest drm-intel-fixes and drm-intel-next-fixes branch kernel.

==Reproduce steps==
----------------------------
1, Connect two monitors
2, Start machine
Comment 1 Jani Nikula 2015-06-22 11:39:47 UTC 
Please see if reverting 

commit b432e5cfd5e92127ad2dd83bfc3083f1dbce43fb
Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date:   Wed Jun 3 15:45:13 2015 +0300

    drm/i915: BDW clock change support

helps. See also http://mid.gmane.org/87bngf4xk3.fsf@intel.com
Comment 2 ye.tian 2015-06-23 02:03:07 UTC 
Test it on the latest drm-intel-nightly branch kernel, This issue has go away.
So verified it.
Comment 3 Elizabeth 2017-10-06 14:29:38 UTC 
Closing old verified.

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