with Ubuntu alternate cd-amd64,these mobos are supported.u can use fglrx proprietary drivers for graphics support.
there are work arounds for ATi and AMD to support Compiz-Fusion(beryl is dead).
while installing:
Asus M2a-VM with Ubuntu 7.10 32bit
There are issues with this board:
First issue: When installing an error like this occurs 'cannot allocate resource region .....'
Solution: go into the BIOS and disable the HPET option. Use the 'Alternate Install CD 7.10'. Before installing pass the boot option 'acpi=off'. Make sure you floppy drive is either connected or disabled in the BIOS as the installation routine hangs looking for it.
After complete installation install the restricted ATI driver via restricted driver module. Resolution up to 1280x1024 is ok. Sound ok. Didn't had much time to test video. Will do soon.
*ubuntuforums.org/showthread.php?t=592662&highlight=M2A-VM
MSI K9AGM2 is supported as per ubuntu forums.
ATI gfx cards means u need to edit /etc/X11/xorg.conf or generate xorg.conf using aticonfig and install restricted drivers(fglrx).
*www.ubuntuguide.org -explains ATI thing!
full support(optimized) will be there within months.