this 19.3.1 drivers only working for me and this kind of monitor.I can see the later drivers making some kind of issue win my monitor drivers ,!!!!
Your monitor does not support DP. But looking at the shared pictures, your display connection is using DP. Also, looking at the shared images, the monitor driver is installed. This monitor driver may prevent AMD display driver from working properly. It also seems that Windows does not see GPU BIOS data properly. GPU BIOS seems to have been modified. Don't make fun of the brains of those who try to help you.
Hmm,i can instal monitor drivers but only on those 19.3.1 amd drivers.When i try instal monitor drivers with nwe amd drivers its says I already have it .Here is proof.On Acer page there is only dirvers for windows 8.64 bit
BUT if with ACER driver works THEN you should use it ! Look for driver release DAte in device MAnager when 19.3.1 and compare it with the DAte from ACER site (if it is win8 or win7 possibly doesn't matter, with 19.3.1 you get the same monitor driver in Win10).
Oh my god i got it. switched DP with HDMI cable , and i installed drivers 19.9.2 wthout a problem .its look like the problem is DP cable or DP in Acer monitor. i will bought a new DP cable to be sure whats going on. For now. with HDMI port with cable work like a charm : )