[Bug 16689] New: radeon driver: conflict between manual backlight switch off and auto

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=16689

           Summary: radeon driver: conflict between manual backlight switch
                    off and auto
           Product: xorg
           Version: unspecified
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: major
          Priority: high
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: heavytull at hotmail.com
         QAContact: xorg-team at lists.x.org


when i intend to leave my laptop for a while I manually switch OFF the
backlight of the screen by pressing Fn+F4 keys, otherwise i just leave it ON
and after 10min (ACPI settings) it gets OFF automatically. It appears that if I
manually switch OFF the backlight and leave it OFF for the time of ACPI auto
OFF, then I can switch back ON the backlight by just moving the mouse or
pressing any key on the keyboard once. But if I press a second time any key,
then i get a blank screen (backlight ON) and the computer is in a "hung" mode,
then I have to switch manually OFF the backlight again and switch it ON again
by pressing any key on the keyboard.

I say it is in a "hung" mode because If all happens while the computer plays
music, then the music stops when the screen is blank.

I'm using the default slackware 12.1 with its generic kernel (2.6.24.5-smp)


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