On Fri, 28 Dec 2007, Ben Liblit wrote: > - two devices in /sys/class/backlight for one piece of hardware > - acpi_video0 appears to do nothing useful at all Known bug on ACPI video, they are going to fix it (but the fix is non-trivial, so I am not sure it will arrive for 2.6.25. I sure hope so). > - acpi_video1 works well, except that levels 0-19 are no-ops Lenovo BIOS bug, you can (and should!) open a technical support request with them, complaining about it. But make sure you tested it with the latest BIOS available for your thinkpad, first. A workaround will be added to ACPI video sooner or later, it is a common problem, probably due to a hole in the ACPI spec or somesuch. > Are these real thinkpad_acpi bugs, or things I should accept as > permanent and try to work around in user space using HAL's quirk > management features? They are known kernel ACPI video.c bugs, which are going to be fixed. -- "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 ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel
