On Fri, 28 Dec 2007, Ben Liblit wrote: > brightness adjustment keys (Fn+Home, Fn+End), the value in > "actual_brightness" changes over the range 0-15. However, the actual
actual_brightness is what is in the hardware right now. brightness is the last brightness request you made, which is either what the kernel is trying to get actual_brightness to be, or (after it managed to set the brightness to the level you requested), garbage. Yeah, it is weird. I don't like it either. In fact, the "simple interfaces" for led and brightness control throuhg sysfs are incomplete and a major pain in the ass. But there is not much I can do about it. > display brightness remains unchanged. I can change the backlight level > manually by echoing a value from 0-15 into "brightness", but if I don't > do that, "actual_brightness" changes without changing the actual brightness. Eh? actual_brightness is changing but the *display* backlight level (not the value of any sysfs files, the actual screen brightness) is not changing? If that's happening, it is a bug in thinkpad_acpi. Try playing with the different brightness_mode settings, and please tell me which one worked properly. > Bug? Misunderstanding? What's going on here? Bug. -- "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 ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ ibm-acpi-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel
