gofanco Prophecy HDMI EDID Emulator Passthrough Adapter – 1024x768 @60Hz Default Resolution - HDMI Dummy Plug Headless Ghost Display Emulator - HDMI 1.4, YCbCr, RGB, HDMI Bus-Powered (PRO-EDID768)

I obtained this 4K EDID passthrough adapter to help a Mac Mini M1 work with an AVR and projector.Although, it indeed made it easy to achieve stable 4K 60Hz output, streaming services would not display video. Hours later I notice the tiny lettering in this device's photos that indicate it does not pass DHCP signals. Renders it nearly useless in a home theater setting.Were it to return a HDCP signal it would be a perfect device for making PC's compatible with HT devices. Unfortunately it can only create a video chain that reports zero HDCP capability. Hence, streaming services fail due to this adapter.

I use an Nvidia Shield to stream games to my TV some times. Unless I have an HDMI cable plugged directly to my TV, I can't enable HDR because none of my monitors at my desk support 4k resolution. This is a known issue but now just plugging in this device in my GPU's HDMI port, my PC and Shield thinks I'm connected to a 4k display so allows me to enable HDR. Best 20 bucks I've ever spent! Well, except that time down in.... eh, another time lol.One thing that is a possible concern but not sure yet is I don't connect any monitors to the emulator as I've heard sending HDR to a monitor that doesn't support it may damage it. So when I stream to the TV, just unplug that monitor connected via HDMI and slip this device in and I'm golden. Maybe I can put my cheap AMD graphics card in and keep it plugged into that so I don't have to keep switching cables out. I'll have to test.

Does spoof edid data, so that much is correct. The device also advertises to the attached computer all the listed resolutions. If you select them though, the output video is still at 16:10 aspect ratio, just sort of squished or with bars. It might be some combination of the OS and GPU drivers attempting to make the listed resolutions work for the supposed 16:10 display that they think is attached, but it means that for widows at least, this wont really work for standard 16:9 displays. Ive tested it with 1680x1050 monitor, which was the one I intended on using(keeping the kvm from reshuffling the attached windows), and a 1920x1080 display to test if the issue was monitor/cable specific(it wasnt).

I wanted this to force a monitor for an all-in-one computer to run at 1920x1080 through its hdmi input. I knew that the monitor could run in this mode since it ran at this resolution from the all-in-one. It worked! I assume that the hdmi input was not supplying a proper EDID.

This item did nothing. You plug it into your HDMI port and it gives you an extension out the back which is more of a hazard then just plugging directly in. Hard to think of a circumstance where this would be needed. I was hoping it would help fix a broken or damaged HDMI outPut but It did not