snes9x fullscreen in KnoppMyth w/ PVR-x50, was: [mythtv-users] mythgame snes9x PVR-350 tvout

[Maverick]

> You can edit the snes9x options by hitting "i" when "snes" is
> highlighted on your "play games" screen - on my nvidia tv-out, i just
> set it to use fullscreen and interpolation level 1, which works quite
> well (dunno about the PVR-350 fb, though).  You may need to suid root
> snes9x in order for some options to work, since it needs to play with
> /dev/mem.

I was wondering if anyone else out there has gotten fullscreen snes9x
working on KnoppMyth, with a PVR-x50 would be a plus. When I try
loading snes9x manually (as root, otherwise I get the kmem error) with
-fs, I get this:

X Error of failed request:  XF86DGANoDirectVideoMode
  Major opcode of failed request:  137 (XFree86-DGA)
  Minor opcode of failed request:  1 (XF86DGAGetVideoLL)
  Serial number of failed request:  11
  Current serial number in output stream:  11

The little bit I'm able to find about it has to do with the DGA stuff
not being loaded in X. Can anyone confirm this is true with KnoppMuth
V4R5? Has anyone successfully used the full screen framebuffer of a
PVR-x50 w/ snes9x??

Thanks in advance!