* I tried acpi_backlight=vendor. Neither option works or seems to provide any backlight interface. I tried to get as much information as I could, but I'm not familiar with trying to debug acpi or driver issues. This is still using the 20090811 live cd (if the kernel update actually is in the live disc now I could re-download... But I'd rather not if it hasn't)
$ uname -a Linux ubuntu 2.6.31-4-generic #23-Ubuntu SMP Mon Jul 27 18:39:59 UTC 2009 x86_64 GNU/Linux $ dmesg | grep "Command line" [ 0.000000] Command line: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash acpi_backlight=vendor $ xbacklight No outputs have backlight property $ cat /proc/acpi/video/GFX0/LCD/brightness <not supported> $ ls -a /sys/class/backlight/ . .. * Also, I've tried the setpci method, but that did not work. It is probably due to a different memory range. * Time permitting tomorrow, I will see if I can dig up desrt's old macbook brightness utility to see how it did it. I used it originally before the "old" Intel driver supported the backlight on this machine, so it should work. -- Unable to adjust brightness (KMS bug) https://bugs.launchpad.net/bugs/388216 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
