I have the Radeon RX550 and updated to version 21.3.1. Now I cannot play some older games without them going into a windowed mode. I tried installing the next version up but it made no difference, still windowed mode. So I tried to roll back the versions but could only go back one version. So now I lost my version that worked and am stuck with this newer version. Is there a way to fix the window mode or go back to the version prior to 21.3.1?
Under the OS selections there is a 'Previous Drivers' (link in blue).
Do you, by any chance have an 4K or 1440p Monitor with DPI Scaling activated?
Some old Games do absolutly not like DPI Scaling and will be displayed like they are in Windowed mode. But most likely its the Fullscreen not affected by the scaling stuck at the Top Left Corner.
Use the manual selection for your card.
Use the manual select (drop down) options.
I went to the manual drop down area and cannot find a driver prior to 21.3.1. I need the one prior to this to be able to run a game with a resolution of 640 x 480.
See this on the drivers and support page,