I will be a newbie with AMD graphics. I have bought a radoeon RX 570. After install it I have use it with me old Resolution 1920 x 1080. My Monitor (Samsung 4 K TV) told me, That he get Resolution 1920 x 1080. On the Weekend I have test the Resolution 3840 x 2160 and my TV told me he get this Resolution. But because the Icons are to little for me, so I swich the Resolution in the windows Options back to 1920 x 1080. Now I have on my screen this Resolution, but my TV told me I have Resolution for 4 K (3840 x 2160).
Can it be, That the graphics Driver hold the 4 k Resolution and with the Windows graphics Options I only switch virtual back to 1920 x 1080?