After updating to Ubuntu 13.04 Raring with the latest updates, adding "vendor=backlight" does no longer resolve the problem.
I did however see entries in /sys/class/backlight/ and echoing numbers to /sys/class/backlight/intel_backlight/brightness affects the brightness. After adding also "acpi_osi=Linux" to the boot options I can now controll the brightness lever with the keys. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1087874 Title: Brightness control not working on Acer TimelineX 3820T using Intel graphics To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1087874/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
