Auto-darkening of SUN screen

[et]

Dipl.-Math. Michael Stumpf
Psychological Institute
University of Freiburg
Niemensstr. 10
D-7800 Freiburg im Breisgau
West Germany


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Does anyone have a program (a modified getty?) which darkens
the screen of a SUN workstation after some minutes of
displaying "<host> login:"? We do not want to switch on and off
the screens several times a day and we also do not want to stay
them in the state described above for several hours.
After touching some key on the keyboard, the screen has to be
"switched on" of course.
Michael.