I have a Matrox G200 Millennium 8MB AGP and a Sony 17" 200ES
During probing/testing of 1280x1024 mode (any colours), X
makes the monitor looses syncs, and hangs any video output
(also in text mode), so it's necessary to do a "blind"
Same thing happens setting-up manually with xf86config ...
Do lower resolutions work?
Probably - should also be fixed by new DDC-probing.