The latest kernel (2.6.31-rc5-git2) requests to send a report if brightness works on a ThinkPad X40 with Intel 855GM, it reports it is using brightness_mode=2 Not sure what needs to be tested, but the brightness keys work, but do not cause any HAL events by default (so no OSD). The brightness is reduced when switching to battery mode, and increased again when plugged into the mains power. Neither of these actions cause any messages in syslog, so this seems to be completely hardware managed. I checked /sys/devices/virtual/backlight/* and I can change the brightness by putting a different value into brightness. When pressing the brightness up/down buttons, the brightness file does not change, but actual_brightness does. ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel