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KevinH · 08-23-2023, 05:09 PM

Since both EDID's are identical it explains why the SerialNumbers of both are identical: 16843009

Given everything is identical, there is just no way for Qt to tell them apart. Especially not using the serialNumber extracted from identical EDID blocks.

Do you have any other ports you could use for a second display. Maybe a different usb-c to hdmi adapter or anything else like that?

I know they make inline edid modifiers. Some are dirt cheap. Perhaps you could use one to change the edid of the second monitor to use a different serial number?

Something like this come to mind, but you would need one that can change the serial number. I am not surevanyone even makes one.

https://www.amazon.ca/Passthrough-Ge...08RCMFLMK?th=1

Until we can find out how to distinguish between the two monitors that Qt can detect we have no way to fix or patch anything.

08-23-2023, 05:09 PM	#78
KevinH Sigil Developer Posts: 8,885 Karma: 6120478 Join Date: Nov 2009 Device: many	Since both EDID's are identical it explains why the SerialNumbers of both are identical: 16843009 Given everything is identical, there is just no way for Qt to tell them apart. Especially not using the serialNumber extracted from identical EDID blocks. Do you have any other ports you could use for a second display. Maybe a different usb-c to hdmi adapter or anything else like that? I know they make inline edid modifiers. Some are dirt cheap. Perhaps you could use one to change the edid of the second monitor to use a different serial number? Something like this come to mind, but you would need one that can change the serial number. I am not surevanyone even makes one. https://www.amazon.ca/Passthrough-Ge...08RCMFLMK?th=1 Until we can find out how to distinguish between the two monitors that Qt can detect we have no way to fix or patch anything. Last edited by KevinH; 08-23-2023 at 05:25 PM.