Comment 16 for bug 1000146

Gary, the problem you have is not the same as mine.
And the keycode 244 means KEY_BRIGHTNESS_ZERO
In my patch, I change the key to KEY_DISPLAYTOGGLE

Please redo the command in comment #13 and then see what you have in /sys/class/backlight
Be sure that video module should not be listed by command "lsmod"
You might see an eeepc* entry in the /sys/class/backlight, you can try to echo value to bl_power to see if it works
   sudo sh "echo 1 > bl_power" ; sleep 3 ; sudo sh "echo 0 > bl_power"
It will turn off the sccren and turn it on after 3 seconds.