Re: Macpro 3.1 Nvidia 8800GT Freebsd 8.0 amd64 black screen
The black screen with the NV driver narrows things in quite a bit. That means we can stop basically troubleshooting any sort of NVIDIA driver issue and instead focus on output of XOrg or cabling. Go ahead and give the alternate cable a shot and see if you get any display from that. I'm using a DVI cable on my 9600 GT without issue but it sounds like you have something else going on.