On Fri, 02 Mar 2007, David Miller wrote: > Why don't we compromise for 2.6.21 by marking the Radeon backlight > stuff EXPERIMENTAL until the cases where IBM ACPI works and the > Radeon backlight stuff does not are worked out?
What ibm-acpi backlight control does is *very* different from what the radeon backlight control does. ibm-acpi talks to the ThinkPad EC to change the brightness of the backlight, it has *NO* on/off support. Radeon talks to the video chipset to turn the LVDS output on/off (or something to that effect), and thus to turn the backlight on/off. -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
