The Fn-keys don't work for me on a Lenovo X300 with linux- image-2.6.27-11-generic (intrepid). Changing throuhg guidance-power- manager in kde4 works, though. I realized that pressing the Fn-keys for brightness up and down changes the value of /proc/acpi/video/VID/LCD0/brightness instead of /proc/acpi/video/VID1/LCD0/brightness (VID instead of VID1). Manually changing the latter (echo 80 > /proc/acpi/video/VID1/LCD0/brightness) does change the brightness. This is also reported for arch linux (see http://wiki.archlinux.org/index.php/Lenovo_Thinkpad_X300#Backlight) so it might not be ubuntu-specific.
I have in /etc/modprobe.d/options options thinkpad_acpi experimental=1 fan_control=1 brightness_enable=1 and tried withouth all these options, and with options video acpi_backlight=vendor always same behaviour. I also tried with a new kernel with # CONFIG_THINKPAD_ACPI_VIDEO is not set (read somewhere, that that could help, but it didn't). I just installed ubuntu intrepid on that notebook, so I can't say, under which constellation exactly it worked, but I remember, that the keys worked when I first installed intrepid from the CD, before updating. But it didn't work with the 2.6.27-7-kernel, which I tried to boot as well. Should I open a new bug for that? Ben -- The slider brightness Applet has value inverted after the last update (2.6.27-11) https://bugs.launchpad.net/bugs/311716 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
