[Bug 61929] New: [HSW Mobile] With eDP and DP plugged, after starting X, eDP black screen

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=61929

          Priority: medium
            Bug ID: 61929
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [HSW Mobile] With eDP and DP plugged, after starting
                    X, eDP black screen
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: major
    Classification: Unclassified
                OS: All
          Reporter: yangweix.shui at intel.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Created attachment 76066
  --> https://bugs.freedesktop.org/attachment.cgi?id=76066&action=edit
eDP black screen dmesg

Environment:
----------------------------
Kernel: (linux-3.8.y)19b00d2dc9bedf0856e366cb7b9c7733ded659e4
Some additional commit info:
Author: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
Date:   Mon Mar 4 06:04:08 2013 +0800

    Linux 3.8.2

lspci:
----------------------------
00:00.0 Host bridge: Intel Corporation Device 0c04 (rev 06)
00:02.0 VGA compatible controller: Intel Corporation Device 0416 (rev 06)

BIOS:
----------------------------
BR_Production_QM87_5MB_BIOS-112.1_ME-9.0.0.1310.v3_Undertest

Reproduce step:
----------------------------
1. Plugged DP and eDP
2. reboot
3. xinit&
4. Then you will find eDP black screen, but if I use xrandr clone mode, eDP
will display OK.

Description:
----------------------------
I have used an older kernel, there's not this issue. I will give detail
description about which branch, other platform test results when all of our
testing finished. If you need some special messages, please comments.

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