Thanks Khashayar, I'm just including the upstream git commit id for the Ubuntu kernel team to reference. Thanks.
ogasaw...@yoji:~/linux-2.6$ git log -p 935e5f290ec1eb0f1c15004421f5fd3154380fd5 commit 935e5f290ec1eb0f1c15004421f5fd3154380fd5 Author: Zhang Rui <[email protected]> Date: Thu Dec 11 16:24:52 2008 -0500 ACPI: video: Fix reversed brightness behavior on ThinkPad SL series Section B.6.2 of ACPI 3.0b specification that defines _BCL method doesn't require the brightness levels returned to be sorted. At least ThinkPad SL300 (and probably all IdeaPads) returns the array reversed (i.e. bightest levels have lowest indexes), which causes the brightness management behave in completely reversed manner on these machines (brightness increases when the laptop is idle, while the display dims when used). Sorting the array by brightness level values after reading the list fixes the issue. http://bugzilla.kernel.org/show_bug.cgi?id=12037 Signed-off-by: Zhang Rui <[email protected]> Tested-by: Lubomir Rintel <[email protected]> Signed-off-by: Len Brown <[email protected]> ** Changed in: linux (Ubuntu) Importance: Undecided => Medium Status: New => Triaged -- [asus] /sys/devices/virtual/backlight/acpi_video0/brightness has it backwards https://bugs.launchpad.net/bugs/320874 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
