[Bug 91613] New: [BSW] gnome-session fail to launch with black screen showing

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91613

            Bug ID: 91613
           Summary: [BSW] gnome-session fail to launch with black screen
                    showing
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: wendy.wang at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 117639
  --> https://bugs.freedesktop.org/attachment.cgi?id=117639&action=edit
xorg.log

Test environment
Failed platform: Braswell

Regression? Should be one regression against GFX kernel, 
Try to bisect on drm-intel-next-queued branch, but cannot find bad commit.
But on drm-intel-nightly, issue happened after August fifth 

 Libdrm:       
(master)libdrm-2.4.62-106-gc8df9e724e9a2559d551fa93f13afe7084b6af3f
 Mesa:        (master)42d283a0cc928a9e3ecddf1a90f9417ef1a34392
 Xserver:       
(master)xorg-server-1.17.0-287-gea03e314f98e5d8ed7bf7a508006a3d84014bde5
 Xf86_video_intel:       
(master)2.99.917-406-gbc063c9f4af90542297877281b1b9f4692dafde4
 Cairo:        (master)2cf2d8e340a325adb205baf8e4bd64e1d1858008
 Kernel:   (drm-intel-nightly)c0423306790589bed75fd75b0a9388b4b41e4a48
OS: Ubuntu 14.04 LTS
gnome-session version 3.9.90

Reproduce steps:
1.    Boot up system
2.    Xinit &
3.    Screen
4.    Gnome-session &
SUT fail to stat gnome-session with black screen showing.

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