In X configuration customisation, testing modes greater than 640x480 with a Matrox G400 doesn't work. The screen goes black momentarily, and then goes back to the X config screen. This card can _certainly_ do better than that, and I'm fairly sure this worked in 6.2beta1.
Arghh! It's worse! X _actually_ doesn't work in higher resolutions! Shall I report another bug against X?
What does this card do under Beta3?? Any better?
Yeah, it's fine now. It chooses colour depth 8 when 16 works fine, but that's all.
We are still tweaking the Xprobe code, so that might get ironed out here in the next few releases.