[Bug 33362] New: No ACPI device

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=33362

           Summary: No ACPI device
           Product: xorg
           Version: unspecified
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: sentieroscuro at gmail.com
         QAContact: xorg-team at lists.x.org


Sorry for my english...
I installed Ubuntu 10.10 x64 on a MacBookPro 2,2 with Radeon Mobile X1600.
I try to change brightness of my screen but i discover that
/sys/class/blacklight is empty and there isnt /sys/class/lcd.
I read the dmesg and i found this 2 lines:

failed to evaluate ATIF got AE_BAD_PARAMETER
radeon 0000:01:00.0: Error during ACPI methods call

is a bug of the driver? i look for it in internet but i dont find anything...

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