Re: geforce4 4200 go, 1920x1200 laptop, 1920x1200 external lcd
According to your bug report, you're requesting a 1600x1200 mode for the CRT, so that's what you're getting.
However, it also looks like the EDID for the CRT isn't available:
(WW) NVIDIA(GPU-0): Unable to read EDID for display device CRT-0
If you want a mode larger than 1600x1200, you'll probably need to create a modeline, and request it.