Bug#641621: What / how to report upstream and unable to work around?

[Darryl Green]

I have the same problem, but I can't seem to find a way to resolve
dependencies using testing (probably my own incompetence) so was
prepared to raise issue upstream in desperation. However, from a dumb
users perspective, I can't see what to report as I get debian dependency
messages, not anything I can say breaks when I actually try to use the
nvidia software? Do I need to try to build from sources and see what
breaks? Surely maintainer knows this already and can file a better
upstream report than I can?
Any hints on how to work around the dependency issue appreciated. I'm
stuck with:

# apt-cache showpkg xserver-xorg-core
....
Provides: 
2:1.11.2.901-1 - xorg-video-abi-11 xorg-input-abi-13 
2:1.11.1.902-1 - xorg-video-abi-11 xorg-input-abi-13 
2:1.7.7-13 - xserver xorg-video-abi-6.0 xorg-input-abi-7.0 

# apt-get install xserver-xorg-core=2:1.7.7-13
...
Selected version '2:1.7.7-13' (Debian:6.0.3/stable [i386]) for
'xserver-xorg-core'
...
 xserver-xorg-core : Depends: xserver-xorg but it is not going to be
installed