I recently bought new PC (HP Eliteone 800 G5 All in one), with installed Radeon RX 560 graphic card.
I have 2 monitor: the HP all in one and an external, connected with HDMI.
I think i have an issue of color depth only in all in one monitor.
The gradient image have a very low quality (see the attachments).
I have remove and update driver many times, when install it seems work properly but when reboot pc the problem reappears.
