Found a workaround for my Toshiba Tecra A11: http://ubuntuforums.org/showthread.php?t=2275437&p=13272746#post13272746
TL;DR edit /etc/default/grub GRUB_CMDLINE_LINUX_DEFAULT="quiet acpi_backlight=vendor" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1462221 Title: Display Brightness Cannot be Changed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1462221/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
