Same problem on Ubuntu 12.04 (3.2.0-26-generic) and Thinkpad T500 echo 0 | sudo tee /sys/module/video/parameters/brightness_switch_enabled
or echo 4 > /proc/acpi/ibm/cmos echo 5 > /proc/acpi/ibm/cmos works -> ~9 brightness steps instead of ~5 steps dmesg: thinkpad_acpi: detected a 8-level brightness capable ThinkPad -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/257827 Title: brightness changes twice when using hotkeys To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-power/+bug/257827/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
