https://bugs.freedesktop.org/show_bug.cgi?id=33362
--- Comment #1 from Alex Deucher <[email protected]> 2011-01-22 09:54:50 PST --- (In reply to comment #0) > 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. That's an issue with acpi on your system. > 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 You can ignore this. It's an acpi method used by the driver that's only available on some systems. > > is a bug of the driver? i look for it in internet but i dont find anything... The driver doesn't control the backlight natively. The backlight is handled via acpi methods as the way the backlight is wired up varies from oem to oem. -- Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. _______________________________________________ xorg-driver-ati mailing list [email protected] http://lists.x.org/mailman/listinfo/xorg-driver-ati
