http://bugzilla.kernel.org/show_bug.cgi?id=11769

           Summary: LCD brightness constantly set back to 100%
           Product: ACPI
           Version: 2.5
     KernelVersion: 2.6.27
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Other
        AssignedTo: [EMAIL PROTECTED]
        ReportedBy: [EMAIL PROTECTED]


Latest working kernel version: 2.6.26.6
Earliest failing kernel version: 2.6.27
Distribution: Arch Linux
Hardware Environment: Gateway MX6961 laptop w/ Intel GMA950 graphics
Software Environment:
Problem Description:

Shortly after boot, the LCD's brightness gets set to 100%.  I can set it back
to the desired level using "echo 62 > /proc/acpi/video/VGA/LCD/brightness". 
However, there are many actions that will return the brightness to 100%, such
as switching to a console with ctrl+alt+fn, or returning from xorg screen
blanking.  Just about anything that changes the monitor's mode is accompanied
by a return to 100% brightness.

Steps to reproduce:
1) Boot computer.  Brightness will go to 100%.
2) Set brightness back to desired level using either /proc/acpi/video... or
/sys/class/backlight...
3) Press ctrl+alt+f1.  Brightness will return to 100% every time.
4) Leave xorg idle until screen blanks.  When the screen is "woken up",
brightness gets set back to 100%.


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