From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@freedesktop.org
Subject: [Bug 28856] New: Laptop screen turns black with KMS, external screen
	stays on
Date: Wed, 30 Jun 2010 11:26:51 -0700 (PDT)
Message-ID: <bug-28856-502@http.bugs.freedesktop.org/>
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https://bugs.freedesktop.org/show_bug.cgi?id=28856

           Summary: Laptop screen turns black with KMS, external screen
                    stays on
           Product: DRI
           Version: XOrg CVS
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: aneaspam@gmx.de


Created an attachment (id=36638)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=36638)
dmesg output

After booting with KMS enabled my laptop screen turns black as soon as X
starts, while my external screen continues to work. The desktop still expands
to both screens. If I disconnect the external monitor everything runs smooth, I
can even connect the monitor afterwars and enable it through xrandr. But the
laptop screen turns black again when I run glxgears through Gallium. I can turn
the black screen off and on through xrandr, but it stays black.

With KMS disabled everything works fine. I rebuild my graphic stack from git
but the problem remained. The error first occured months ago, so I disabled
KMS. Today I tried it again and the error is still there.

Archlinux
Linux 2.6.34
dri2proto, glproto, libdrm, xf86-video-ati, libgl + mesa + ati-dri from git
2010-06-30
Ati Radeon Mobility x1700

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