EDID/DisplayID Writer

[qtph]

I don't recall exact error message, I can take a picture next time I boot my multyboot system into Windows. Most likely it was "No compatible GPUs found". Windows pulled its own driver which works perfectly on proper resolution in dual screen mode, so driver is correct. There are no visible differences between working Windows 10 and non working Windows 10 on exactly the same desktop, different partitions. Are there are any commands, utilities etc to show driver status? Device manager lists correct driver and shows no errors on both systems.

[ToastyX]

(09-28-2024 01:24 AM)qtph Wrote:  I don't recall exact error message, I can take a picture next time I boot my multyboot system into Windows. Most likely it was "No compatible GPUs found". Windows pulled its own driver which works perfectly on proper resolution in dual screen mode, so driver is correct. There are no visible differences between working Windows 10 and non working Windows 10 on exactly the same desktop, different partitions. Are there are any commands, utilities etc to show driver status? Device manager lists correct driver and shows no errors on both systems.

Are the driver versions the same in Device Manager on both systems? System Information also has the driver version under Components > Display.

[qtph]

(09-28-2024 01:46 AM)ToastyX Wrote:  Are the driver versions the same in Device Manager on both systems? System Information also has the driver version under Components > Display.

Shown by device manager driver versions ATI Radeon HD 4600 series are the same: AMD 1/13/2015 v8.970.100.9001
Error message is "No compatible displays found".

[ToastyX]

(09-28-2024 03:37 PM)qtph Wrote:  Shown by device manager driver versions ATI Radeon HD 4600 series are the same: AMD 1/13/2015 v8.970.100.9001
Error message is "No compatible displays found".

Run this and post the edw-test.txt here: https://www.monitortests.com/EDW-test.zip

[qtph]

(09-28-2024 07:14 PM)ToastyX Wrote:  Run this and post the edw-test.txt here: https://www.monitortests.com/EDW-test.zip

Current state - two monitors, one connected to one of two radeon 4600 series DVI connectors, another to an on board Intel display port. Same configuration works when booted to another Windows 10 instance.

Code:

GPU count: 5
GPU index: 0 - Path: {4d36e968-e325-11ce-bfc1-08002be10318}\0001 - 6 displays
Display index: -1 - Read failed.
Display index: -1 - Read failed.
Display index: -1 - Read failed.
Display index: -1 - Read failed.
Display index: -1 - Read failed.
Display index: -1 - Read failed.
GPU index: 1 - Path: {4d36e968-e325-11ce-bfc1-08002be10318}\0001 (duplicate)
GPU index: 2 - Path: {4d36e968-e325-11ce-bfc1-08002be10318}\0000 - 10 displays
Display index: -1 - Read failed.
Display index: -1 - Read failed.
Display index: -1 - Read failed.
Display index: -1 - Read failed.
Display index: -1 - Read failed.
Display index: -1 - Read failed.
Display index: -1 - Read failed.
Display index: -1 - Read failed.
Display index: -1 - Read failed.
Display index: -1 - Read failed.
GPU index: 3 - Path: {4d36e968-e325-11ce-bfc1-08002be10318}\0000 (duplicate)
GPU index: 4 - Path: {4d36e968-e325-11ce-bfc1-08002be10318}\0000 (duplicate)

Unable to run on my working Windows 10 - Windows Defender found a virus from 2019, most likely false positive but I did not risk my primary desktop system. Surprisingly, fresh Windows 11 did not complain.

[ToastyX]

(09-28-2024 10:41 PM)qtph Wrote:  Current state - two monitors, one connected to one of two radeon 4600 series DVI connectors, another to an on board Intel display port. Same configuration works when booted to another Windows 10 instance.

Unable to run on my working Windows 10 - Windows Defender found a virus from 2019, most likely false positive but I did not risk my primary desktop system. Surprisingly, fresh Windows 11 did not complain.

I don't know what in EDW is triggering the antivirus but it's a false positive. Something is wrong with the driver because it shouldn't be returning -1 for the display indexes. I don't know what would cause that, but I bet installing the Windows 7 or 8 driver would fix the problem. You have to install the driver manually through Device Manager after extracting because the installer won't install the driver on Windows 10.

[qtph]

(09-29-2024 03:26 AM)ToastyX Wrote:  I don't know what in EDW is triggering the antivirus but it's a false positive. Something is wrong with the driver because it shouldn't be returning -1 for the display indexes. I don't know what would cause that, but I bet installing the Windows 7 or 8 driver would fix the problem. You have to install the driver manually through Device Manager after extracting because the installer won't install the driver on Windows 10.

I simply reinstalled fresh Windows 10 with AMD 4600 board installed ahead of time - zero problems whatsoever. Thank you.

[zarusoba10]

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?

There seem to be some examples of using Raspberry Pi to rewrite counterfeit adapters that have been modified so that the HPD goes into GND...

[ToastyX]

(Today 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.