"Good news, everyone..." Playing with the options explained here http://www.columbia.edu/~ariel/acpi/acpi_howto.txt I finally managed to get it done.
I added the boot option acpi_osi= to my kernel line in /boot/grub/menu.lst and now it works. By default acpi_osi is used to hand over a string to the BIOS to pretend we are running Windows NT. Providing an empty string apparently leaves it as it is. -- LCD backlight brightness control only works until boot starts https://bugs.launchpad.net/bugs/279163 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
