GK3V - LCD screen not working on HDMI

[kingsize]

Hi all,
I have special LCD rounded screen (ok, from AliExpress) which comes with a HDMI Mipi interface board.
During the boot process the video output is fine, but as soon Windows starts the signal is lost and windows says: Display 2 isn't active.

The LCD works fine on other PC's.

Any ideas?

Thanks!!!

[witt]

It may be a problem with the graphics card driver. I will try to reinstall windows.

https://www.iacepc.com/forum/viewtopic.php?f=34&t=707

[kingsize]

That was also my first guess that the graphics card driver was not working correctly.
But I have several computers of this type, and several of them have the same problem after the initial installation.
Maybe I should install older graphics card drivers?