Bug 66491 - [HSW bisected]screen black when start gnome-session enabling SNA
Summary: [HSW bisected]screen black when start gnome-session enabling SNA
Status: VERIFIED DUPLICATE of bug 66488
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/intel (show other bugs)
Version: unspecified
Hardware: All Linux (All)
: medium major
Assignee: Chris Wilson
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2013-07-02 09:29 UTC by pengcheng.jiang
Modified: 2013-07-03 06:58 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

Attachments
dmesg (94.34 KB, text/plain)
2013-07-02 09:30 UTC, pengcheng.jiang 		no flags Details
Xorg.0.log (20.14 KB, text/plain)
2013-07-02 09:31 UTC, pengcheng.jiang 		no flags Details
View All

Description pengcheng.jiang 2013-07-02 09:29:33 UTC 
system Environment:
--------------------------
platform: HSW 
Mesa:(master)4c859901cebf04b37d8d458d58fc5ac0e24b4471
Xf86_video_intel:(master)2.21.11-12-g24a7bec7faa7dcc4393ef7f66939ae0fb8acdf36
Kernel:	(drm-intel-nightly) 4650ba773f66c31ee17f87a8ffd715465a2cab05

hardware:
--------------
Shark Bay Desktop Beta SDP (Flathead Creek): C3 stepping (id=0x0412, rev 06), Lynx Point 02 (B0 stepping) and Host bridge id=0x0c00 (rev 06) 4Cores/4Thread, CPU i5-4570 3.2GHz, GT2 1150MHz; BIOS version: V120; KSC version: V1.10; Barcode: BB001794;

Bug detailed description:
-------------------------
Screen black when start gnome-session, enabling SNA on HSW. It doesn't exist without SNA. Pls see Xorg.0.log and dmesg attached.
It's Xf86_video_intel regression, bisected show that:
  The first bad commit could be any of:
  8a6a21bff86100144ba7960fc32a299ac54ada83 
  c5651254c3c152daf1ed79073779c1bed6ed0a9b

Reproduce steps:
--------------------
1. xinit&
2. gnome-session
Comment 1 pengcheng.jiang 2013-07-02 09:30:34 UTC 
Created attachment 81855 [details]
dmesg
Comment 2 pengcheng.jiang 2013-07-02 09:31:07 UTC 
Created attachment 81857 [details]
Xorg.0.log
Comment 3 Chris Wilson 2013-07-02 09:39:50 UTC 

*** This bug has been marked as a duplicate of bug 66488 ***
Comment 4 pengcheng.jiang 2013-07-03 06:58:31 UTC 
The following commit do fix it.

commit c361b449cc3ec15819883afc220aad8823c0072d
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Tue Jul 2 09:49:48 2013 +0100

    sna: Include connector status in the initial probe

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