How to have HTDV (HDMI) detected as a PC Monitor (DVI) with an EDID Override

Prompted by a PM exchange with poster ianken I managed to have my Samsung HDTV detected as a PC monitor with an EDID override, while retaining HDMI audio (ATI 5770, Cat 10.9) and 24Hz:

Tricky part is of course EDID editing. I removed the Vendor Specific Block (and Colorimetry Blocks, but maybe this is not necessary) from the EDID Extended Block, which varies of course according to Vendor:

I then filled the rest of the extension block with 0x00 and fixed CEA Extension Header and checksum with vladd's EDID editor.

So, unfortunately this does not work as a do-it-yourself method, as some EDID editing expertise is required, and even if I'm afraid to be flooded again with much more work I wanted to report it FWIW.

And finally, this method works only on Vista and Win7 with all graphic adapters excluding Intel IGPs (which do not accept an EDID override).

Tough question!

Here's a short answer: this is a monitor-driver level solution to force all applications to work on the RGB color space (provided your HDTV can take RGB encoded colors of course).

For instance, on my dual monitor setup I get now consistent black levels between my Dell 2407WFP PC monitor and my Samsung HDTV.

Otherwise you run into the very known nightmare of different applications mapping RGB<->Video inconsistently (MC vs. desktop applications, BD vs SD playback and even games).

Of course, this can be managed (sort of) by using driver options for mapping color spaces, registry hacks, etc. But it's a very tedious process, again, a nightmare (and I'm not even sure that it works in all cases).

OK. Post your Kuro and AVR full 256 bytes EDIDs and I'll do the mod so you can try (follow instructions in my sig.).

But, a program that automatically gets rid of the Vendor Data block and does the rest will still be required. Will you, vladd?