I've got this same problem on my acer 5732z. Particulary solution is boot system with acpi_osi="linux". I can change a level of backlight, but it works "weird". If i set on keyboard 90% backlight, system set 10%. So it works, but reverse. Additionaly i cannot set level of backlight from gnome - i can control it only from keyboard.
-- Cannot change brightness on laptop acer aspire 5732 Z https://bugs.launchpad.net/bugs/490610 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
