LCD Brightness

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LCD Brightness

This worked for my X61:

Once your brightness keys work, you can set the brightness by writing to the procfs:

# echo 100 > /proc/acpi/video/VID1/LCD0/brightness

using a script and acpid events. However this may lead to a bug (screen flickers) described on the Debian mailing list [[1]]. This bug is related to the X server as it does not occur on the tty1. To fix it change your xrandr backlight control to native:

$ $xrandr --output LVDS --set BACKLIGHT_CONTROL native