EDID/DisplayID Writer

[jeffeh12133]

(12-03-2024 02:54 PM)ToastyX Wrote:  

(12-03-2024 06:54 AM)zarusoba10 Wrote:  Hello
I have successfully used this software to rewrite the EDID of a live display. As another step, I would like to rewrite the internal chip of an EDID counterfeit adapter.
According to the article below, if you connect the HPD pin of the HDMI to the GND pin, you can disable the WP without destroying the exterior of the counterfeit adapter.
The WP pin activates the WP when voltage is applied, but if you connect this pin to GND, the voltage to the WP is lost and the WP is disabled.
https://blog.sharpbai.com/2022/10/%E4%BF...%E6%81%AF/

I would like to apply this with EDwrite, but if the HPD pin goes to GND, I think Windows will probably not be able to detect the device plugged into the HDMI. What do you think?

I tried blocking the HPD pin with tape with a similar EDID emulator adapter, but Windows wouldn't detect it.

is it possible to extract the current EDID data and reupload it as DisplayID data or do i need to translate the EDID data into DisplayID format before writing DisplayID data

[ToastyX]

(12-06-2024 10:56 PM)jeffeh12133 Wrote:  is it possible to extract the current EDID data and reupload it as DisplayID data or do i need to translate the EDID data into DisplayID format before writing DisplayID data

EDID and DisplayID are completely different formats. Also I haven't seen any device with DisplayID data. The buttons are there to do the right thing if it becomes available, but I haven't seen it work on anything.