[Bug 69204] New: [Baytrail-M] xrandr can detect VGA while only plugged in eDP on machine

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=69204

          Priority: medium
            Bug ID: 69204
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [Baytrail-M] xrandr can detect VGA while only plugged
                    in eDP on machine
        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 85601
  --> https://bugs.freedesktop.org/attachment.cgi?id=85601&action=edit
dmesg: VGA detected without been plugged

Environment:
--------------------
Kernel: (drm-intel-nightly)da66146425c3136943452988afd3d64cd551da58
Author: Mika Kuoppala <mika.kuoppala at linux.intel.com>
Date:   Fri Sep 6 16:03:28 2013 +0300
    drm/i915: include hangcheck action and score in error_state

lspci:
--------------------
00:02.0 VGA compatible controller: Intel Corporation Device 0162 (rev 09)

Test Steps:
--------------------
1. Only with eDP plugged on machine
2. xinit & ,  xrandr:

Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 32767 x 32767
eDP1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 282mm x
165mm
   1920x1080      60.0*+
   1400x1050      60.0
   1280x1024      60.0
   1280x960       60.0
   1024x768       60.0
   800x600        60.3     56.2
   640x480        59.9
VGA1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x
0mm   1024x768       60.0*
   800x600        60.3     56.2
   848x480        60.0
   640x480        59.9

Description:
---------------------
In our opinion, xrandr can only detect the plugged display pipe, but Baytrail
machine can print VGA information without been plugged. Add command
"video=VGA-1:d" in grub, we can disable VGA and  xrandr will display correctly.
Both 32bit and 64bit machine reproduceable. This issue exists on older kernels,
it's not a regression.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are on the CC list for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20130911/23de2bc9/attachment.html>