Having the same issue on a Clevo P150EM notebook with a fresh install of Ubuntu 12.04.1 x86_64
The following terminal command works: echo X | sudo tee /sys/class/backlight/acpi_video0/brightness where X is an integer between 0 and 7. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1041116 Title: Brightness hotkeys have no effect on Clevo laptop To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1041116/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
