My Windows 10 PC, happily running at 1920 x 1080, suddenly went blank, then came back at 1024 x 768 recently, also with a Radeon card. Device Manager claimed the driver was the latest available, but the date gave away what had happened. Probing about in the device manager page, I found it allowed me to revert to the previous driver and even allowed me to say why. It lasted until The addition of a second monitor a couple of weeks later prompted an upgrade, but the 7 year old Radeon was coping fine otherwise, after the driver "downgrade".