Jeremy, Please check the contents of the following files:
$ cat /sys/devices/virtual/backlight/acpi_video0/brightness $ cat /sys/devices/virtual/backlight/acpi_video0/max_brightness $ cat /sys/devices/virtual/backlight/acpi_video0/actual_brightness and as root, try to change the value of the 'brightness' file: # echo 2 > /sys/devices/virtual/backlight/acpi_video0/brightness Does this change the brightness of your display? -- Brightness Applet/Brightness Keys Do Not Work In Gateway M-7315u Laptop https://bugs.launchpad.net/bugs/280518 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
