[Bug 13103] New: i915 closing laptop lid kills LVDS until reboot

[<bug...@bu...>]

http://bugzilla.kernel.org/show_bug.cgi?id=13103

           Summary: i915 closing laptop lid kills LVDS until reboot
           Product: Drivers
           Version: 2.5
    Kernel Version: 2.6.29.1-70.fc11.i586
          Platform: All
        OS/Version: Linux
              Tree: Fedora
            Status: NEW
          Severity: high
          Priority: P1
         Component: Video(DRI)
        AssignedTo: dri...@ke...
        ReportedBy: sa...@cs...
        Regression: Yes


I am using KMS with a Intel 915GM card (on a Thinkpad X41 Tablet).
Closing and reopening the lid blanks the display permanently until a reboot.
Same for docking/undocking. 

This happens even before X starts. This is not related to suspend/hibernate
etc. The problem occurs only with modeset enabled.

I can still fly blind (or log in over the network); and vbetool dpms
does manage to turn the backlight on or off, but the display remains
black. 

I posted a video of the bug at:
http://www.youtube.com/watch?v=-q1N4iosOCI

I posted dmesg and Xorg logs in the following Fedora bz:
https://bugzilla.redhat.com/show_bug.cgi?id=489907

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