Comment 11 for bug 539730

mjg59 says that -vesa just doesn't have edid hooked up, thus the 0mm x 0mm. False alarm.

"VBE call failed" Rats.

Anyway, my guess is that something's wrong with your EDID, but without being able to actually see it I can't be sure. It could just be a general modesetting issue, or even just some other random bug in the display logic. I see you have an LPL monitor - which is a brand we've had to quirk around in UMS before, so this strikes me as a strong possibility.

Unfortunately, a lot of the techniques we would use to debug this in the pre-KMS days simply won't work anymore since the kernel doesn't provide a way to do the equivalent of overriding modelines and other settings in xorg.conf. (So even if we do get the EDID, I'm uncertain how to test theories, other than hacking on kernel code...) The old debugging approach is documented at http://wiki.ubuntu.com/X/Quirks - pretty much the same quirks exist in the kernel, but I don't know how to turn them on to test, aside from adding the code to drm_edid.c.

Anyway, I could be completely in left field. Maybe RAOF will have some better suggestions.