HDCP problem with second monitor turned off

[AMD_Gamer]

I built a new Windows 10 PC last month and just noticed a problem with my monitor setup. When I go to watch movies in Amazon Prime, I turn my second monitor off. Now when I turn it off it breaks the DHCP in Windows 10 so Amazon Prime will not let me stream HD. If I unplug the cable for the second monitor from the GPU it will let me stream HD.

Has anyone run into this issue or know how to fix it?

 

[deaedius]

Please tell us your graphics adapter and driver version please, if you can provide monitor/tv model that would be helpful as well.

 

[AMD_Gamer]

Please tell us your graphics adapter and driver version please, if you can provide monitor/tv model that would be helpful as well.

Sapphire RX580 Nitro
Primary monitor: Asus vg248qe
Secondary Monitor: ASUS VS248H-P 24
Driver: Radeon Adrenalin 18.8.2

Thanks,

 

[deaedius]

There are serval forum posts against the VG248QE with similar HDCP issues especially when using 144hz. There do not seem to be good resolutions unfortunately except a few individuals have got it to work with some tinkering, but I am wondering if it was the refresh rate change overall.