Apple PowerBook G3 - Manual (Page 40)

m If the PowerBook starts up with the display closed (called “docking mode”)
and an external monitor is attached, the PowerBook’s display does not turn
on and the display’s resolution (800 x 600) is not listed in the resolution
section of the Control Strip.
For complete instructions on adjusting the resolution for an external monitor,
see the “Monitors” topic area of Mac OS Help, available in the Help menu.
The list below shows the external monitors and the resolutions, refresh rates,
and number of colors supported by your PowerBook.
Monitor type Resolution Refresh rate (Hz) Number of colors †
12" RGB 512 x 384 60 256, thou, mil
13"/14" RGB Hi-Res
& 12" Monochrome
640 x 480 67 256, thou, mil
VGA displays 640 x 480* 60 256, thou, mil
640 x 480 72 256, thou, mil
640 x 480 75 256, thou, mil
640 x 480 85 256, thou, mil
800 x 600 56 256, thou, mil
800 x 600 60 256, thou
(Simulscan for
PowerBook screen)
800 x 600 72 256, thou, mil
800 x 600 75 256, thou, mil
800 x 600 85 256, thou, mil
1024 x 768 60 256, thou
1024 x 768 70 256, thou
1024 x 768 75 256, thou
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