Hello, sorry to send this message in English, I only speak Portuguese so this will be the best way to communicate.
I recently bought a screen for a 2.1 inch Watercooler, when it arrived I installed it on my computer and the screen didn't even light up, I tried several ways, but there was no sign of life. My config:
CPU: Ryzen 7 5800x3d
Motherboard: b450 Asus Rog Strix F gaming
RTX: Asus 3070
At first I thought it was the screen, or the Windows 11 operating system, but when I turned on the screen on my work computer (MSI A320M-pro) the screen worked normally, but on my computer it doesn't work. I thought it was the 9-pin connectors but I have 2 9-pin USB controllers and they all work on the inputs. I already formatted my computer to w10 and it didn't solve the problem. I don't find an explanation for this situation.
Photos testing on my gaming PC:
(B450 Asus Rog Strix F-Gaming)
Photos testing on my work PC:
(A320M- Pro MSI)