Hmmm...I'm in the same boat, but cannot get my card (FX5700) to work with Twinview, though my old ti4200 and GF4-mx440 worked perfectly. Now with 4620 driver, I don't see anything on TV-out. However on Windows dualview works, and on Linux console is displayed on TV-out correctly, so cable connections are correct
My xf86config and logs......it looks like I have no problem with them except ipv6 related thingy(I'll compile again without IPv6 option).
Will anybody show me working XF86Config file?
Thanks in advance.