Radeon 6900 XT - Monitor doesnt wake up, sometimes

As the title says ,

When KDE goes to energy saving mode - (monitors standby)

After a while when I want to go back to resume my work 1 monitor doesnt wake up but sometimes is ok.

I manage to bind a keyboard key in order to use arandr so as to fix this issue.
I have tried also all the kernels and this happens on all of them.

How to stop Inactivity Blank Screen after 15min:

Go to Settings Editor in Manjaro Settings Manager

Scroll to xfce4-power-manager

Select inactivity-on-ac and change value from 14 to 0

Select inactivity-sleep-mode-on-ac and change value from 1 to 0