Hi white,

becarefull, some powerbook have small max resolutions...

15.2″, TFT LCD display, 1280×854 for:
PowerBook5,2 (15") (FW800 - Al)
PowerBook5,4 (15") (Al)
PowerBook5,6 (15") (SMS/BT2 - Al)

17″, TFT LCD display, 1440×900 for:
PowerBook5,7 (17") (Al)
PowerBook5,3 (17") (Al)
PowerBook5,5 (17") (Al)

15.2″, TFT LCD display, 1440×960 for
PowerBook5,8 (15") (DLSD/HR - Al)

17″, TFT LCD display, 1680×1050 for
PowerBook5,9 (17") (DLSD/HR - Al)

source: https://en.wikipedia.org/wiki/PowerBook_G4