I experience the same behaviour as above. Inrepid 8.10 final, Dell Inspiron 1520, using NVIDIA 177.80 on a 8600M GT. There are 7 levels of brightness supported by the hardware:
[EMAIL PROTECTED]:/sys/devices/virtual/backlight/acpi_video0# ls actual_brightness brightness power uevent bl_power max_brightness subsystem [EMAIL PROTECTED]:/sys/devices/virtual/backlight/acpi_video0# echo 1 > brightness [EMAIL PROTECTED]:/sys/devices/virtual/backlight/acpi_video0# echo 2 > brightness [EMAIL PROTECTED]:/sys/devices/virtual/backlight/acpi_video0# echo 3 > brightness [EMAIL PROTECTED]:/sys/devices/virtual/backlight/acpi_video0# echo 4 > brightness [EMAIL PROTECTED]:/sys/devices/virtual/backlight/acpi_video0# echo 5 > brightness [EMAIL PROTECTED]:/sys/devices/virtual/backlight/acpi_video0# echo 6 > brightness [EMAIL PROTECTED]:/sys/devices/virtual/backlight/acpi_video0# echo 7 > brightness [EMAIL PROTECTED]:/sys/devices/virtual/backlight/acpi_video0# echo 8 > brightness bash: echo: write error: Invalid argument There is also a acpi_video1 directory, with same files. They also change the brightness of the LCD monitor. -- Screen brightness double level changes https://bugs.launchpad.net/bugs/207473 You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to kde-guidance in ubuntu. -- kubuntu-bugs mailing list [EMAIL PROTECTED] https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs