On Mon, 15 Oct 2007, Ondrej Balaz wrote: > I'm testing 2.6.23.1 kernel with the latest thinkpad-acpi on my X60s. > During boot I can see this line: > > thinkpad_acpi: standard ACPI backlight interface available, not loading native > one... At which point it means all brightness control is being done by the BIOS by itself, or by the ACPI video module. > and brightness control partially works at-least in console mode (without X11) > with video ACPI module loaded. Without video module I'm not able to change > brightness. That's the expected behaviour on the new Lenovo BIOSes, from what I have been told. They have removed the "MSDOS mode". Please make sure you have the latest X60s BIOS, and if video is not giving you perfect brightness control in console mode, file a bug in buzilla.kernel.org with the problem description, etc. > In X.org with video ACPI module loaded screen blinks when I press Fn+Home/End > but brightness level never change from 100%. Then when I switch to console > everything is OK and proper brightness level is set (but from this moment and > from moment when I overstep min/max level by pressing Fn+Home/End reacts > brightness control very slow). - Maybe problem with i915 driver ? Exists > workaround ? Sorry, I wouldn't know. Please ask about it on the linux-thinkpad ML, someone there might have the answers you need. > In previous kernel (2.6.22.9) without ACPI video module I can smoothly change > brightness level, but everytime when I switch to console/X it shoots up to 100% > and there is also problem with slow reaction time after overshooting it. If you want to use the thinkpad-acpi interface to brightness control, you can give it the parameter "brightness_enable=1". Refer to the thinkpad-acpi documentation for more details. -- "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: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel
