Toralf Förster <toralf.foerster@xxxxxx> writes: > /'m wondering why under a 64 bit RedHat 6.4 Linux with kernel 2.6.32+X > I do have 16 levels in dimming the display brightness with Fn+Pos1/End > whereas under a 32 bit Gentoo Linux with recent 3.1x.y kernels I do > just have 8 steps from min to max. My guess would be this: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/platform/x86/thinkpad_acpi.c?id=122f26726b5e16174bf8a707df14be1d93c49d62 Bjørn -- To unsubscribe from this list: send the line "unsubscribe platform-driver-x86" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html