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Joseph asks (with regard to screen brightness on battery power):
PS: Yo! IBM! How come this setting cannot be altered from within the
"Systems Programs" --> "ThinkPad Features" --> "Power" window ???
actually, according to IBM, this cannot be altered at all. The comamnd
PS2 BR N is quite deliberately undocumnted.
Best guess is that IBM does not want magazines to benchmark battery
life with "full power options" including the bright screen. That makes
perfectly good sense, battery life is something that any idiot reviewer
can measure and report on, whereas it is much less likely that you get
criticized for a dimmer screen on battery power.