[dundee] interesting problem with new mandrake box

[Simon Wells]

Having just set up a new mandrake 9.1 box running my 17" apple 
flatscreen from an nvidia based card, I have found myself faced with a 
dilemma. The controls on the display do not work to turn off the 
display but I can turn it off using "xset dpms force off". If I do this 
then I can't lock the workstation because any input wakes the screen. 
If I lock the box then I cannot turn the screen off. Anybody have any 
ideas on how to go about this?

Simon