XVR-100 on sun blade 150 Xorg issues

I got an xvr-100 to use instead of the onboard rage xl, but i've been having some trouble getting it to work with xorg. I've recompiled the kernel with insecure option enabled, as i had to to get the mach64 driver working and as i understand needed for the xvr-100 as well. I have disabled the rage xl from obp, and netbsd seems to be finding the card and outputting to it in cli. Running X -configure seems to generate a valid config, but when i try running startx it says there's no screens found and errors out. I've not been able to find a solid fix for this, but from what i have found everything seems to be configured right. Looking through the xorg logs one portion of note is near the beginning of xorg.1.log-
[   873.038] (WW) xf86EnableIO -1
[   873.038] (II) xf86EnableIO: 0xffffffffffffffff
[   873.038] (WW) Can't map IO space! (9)

and a similar warning is generated near the end of the log-
[   873.181] (WW) xf86EnableIO 8
[   873.181] (II) xf86EnableIO: 0x40b94000

Also when looking through the dmesg output there's this that could be of note-
[     1.000000] drm at radeonfb0 not configured

I'm at a loss at this point, and welcome any ideas for what i can do. I've attached the full output of xorg.1.log as well as dmesg, and also my xorg.conf file

xorg log
https://pastebin.com/v3NgiBj1

xorg.conf
https://pastebin.com/CMrGBC9r

dmesg
https://pastebin.com/xHL2J8T4