[Bug 87049] New: [915] querying Randr enables LVDS output. Spurious TV detection?!

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87049

            Bug ID: 87049
           Summary: [915] querying Randr enables LVDS output. Spurious TV
                    detection?!
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/intel
          Assignee: chris at chris-wilson.co.uk
          Reporter: ukleinek at strlen.de
        QA Contact: intel-gfx-bugs at lists.freedesktop.org

Created attachment 110507
  --> https://bugs.freedesktop.org/attachment.cgi?id=110507&action=edit
echo 0xe > /sys/module/drm/parameters/debug; xrandr --output LVDS1 --off;
xrandr; echo 0 > /sys/module/drm/parameters/debug; dmesg

Hello,

this is the same machine and symptoms that
https://bugs.freedesktop.org/show_bug.cgi?id=31519 were reported for. I decided
to report a new bug because it's a different kernel/xorg combination now
compared to the two years old previous bug.

Chipset: 915GM
System arch: i686
Distribution: Debian (Jessie)
Machine: Thinkpad X41
related packages:
  libdrm-intel1: 2.4.58-2
  xserver-xorg: 1:7.7+7
  xserver-xorg-core: 2:1.16.1.901-1
  xserver-xorg-video-intel: 2:2.21.15-2+b2
  linux-image-3.16.0-4-686-pae: 3.16.7-2

When I run

    xrandr --output LVDS1 --off

the LVDS output goes off as expected, but then running

    xrandr

without option reenables it again.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20141206/39a0b14d/attachment-0001.html>