Manjaro not detect my second monitor

Greats people
I’m new in Linux and I decided start with manjaro but I have an inconvenient with a tv that I want to use, it’s not recognized by manjaro I have checked all the post relative to this problem but nothing works, my video card is AMD RX 570 is connected via HDMI with the TV, the main screen is connected via DVI, I should mention that in windows both screens work perfectly. I appreciate your time and the support that you can provide, THK.

which Desktop do you use and have you checked the settings?