I have the same issue after upgrading to 11.04. I tested with a new user profile and experienced the same issue. Below are the commands to bind brightness to a keyboard shortcut in 11.04:
To decrease brightness: echo $((`cat /sys/devices/virtual/backlight/acpi_video0/brightness`-1)) >/sys/devices/virtual/backlight/acpi_video0/brightness To increase brightness: echo $((`cat /sys/devices/virtual/backlight/acpi_video0/brightness`+1)) >/sys/devices/virtual/backlight/acpi_video0/brightness -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/704544 Title: brightness keys don't work on HP Elitebook 8540p -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
