http://bugzilla.kernel.org/show_bug.cgi?id=14671

           Summary: No control of Brightness Whatsoever
           Product: ACPI
           Version: 2.5
    Kernel Version: 2.6.31
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: high
          Priority: P1
         Component: Power-Video
        AssignedTo: [email protected]
        ReportedBy: [email protected]
        Regression: No


Laptop is HP dm3t with nvidia g105m graphics.

Problem: I have no devices in /proc/acpi/video or /sys/class/backlight with
which to control the screen's brightness.  Both Fn+Keys (F1 and F2) have no
keycodes/scancodes.  Brightness cannot be adjusted.

I believe this is an acpi problem which is why I'm filing it here.  Please
forgive my mistake if any as I'm not quite sure what I'm doing here.

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