[ltp] lost cursor when switching monitors on X41

[Richard Neill]

  but i'm not sure
> whether it's possible to blank the internal screen without
> blanking the external video, as "xset dpms force" seems to do. 
> i'd be content just to turn off the backlight, even if the
> display stays "on" otherwise.  

A bit like the refrigerator - how do you know whether the light goes off 
when the door is shut?
At least on my machine, the backlight is turned off by the lid-switch, 
in hardware. You probably don't need to do anything at all!
[There might be a BIOS option for this - I don't recall.]

Richard