So I was waiting for the rest of my parts to get here for a retro build, the very last of those being a DVI-to-HDMI adapter, since I've read that DVI and HDMI are passively compatible with one another. On the day prior to receiving the adapter, I stumbled upon this thread, which describes issues with EDID and Windows 9x.

Got my build altogether, installed Win98SE, installed all drivers on my primary desk monitor over VGA, and I get a picture, as expected. However, my desk space is very limited so I wanted to use my wall-mounted HDTV (which only has HDMI, no VGA) and move the computer over to that display. Connected it to the HDTV with the adapter, booted into Safe Mode (still has a picture) to uninstall the drivers, rebooted and installed drivers (still has a picture), and rebooted for the final time (no picture); the operating system has started but I get no picture.

Would this happen to be related to potential EDID issues as described in the aforementioned linked thread? It just so happens to be that this build I put together uses an ATi Radeon 9600, so can replacing the video card solve the issue? I'd like to use this HDTV with this computer as I can also record it off-camera with the amount of space I have available to use.

Appreciate any suggestions. I'd like to avoid having to purchase an EDID emulator if I can help it; I've heard of KVM switches being used as cost-effective solutions to this. There's not that much information about this online elsewhere.