I have an RX5700 running on 20.2.1 software and now that most of my BSOD issues seem to have gone away for the time being, another one has popped up:
The GPU has started idling at 6MHz (which seems consistent with the fact that cooling stays in passive mode) in the games that I've tried so far (Beam.NG, CS:GO, GTA V, Tropico 6). This of course leads to horrible performance.
I've tried messing around with the settings, such as creating individual profiles for each game etc, but no luck so far. VRAM usage is as expected in each of the games. Any solution for this?
You didn't mention if you used and configured Radeon Settings for the games you playing.
Are you getting any type of errors while playing games?
Try installing the previous AMD Driver that did work correctly for your GPU Card and see if the idle continues.
You can download a previous AMD Driver from here: https://www.amd.com/en/support/previous-drivers/graphics/amd-radeon-5700-series/amd-radeon-rx-5700-s...
IF a previous AMD Driver fixes the issue I suggest you let AMD Support know about the problem by opening a AMD Support ticket from here: https://www.amd.com/en/support/contact-email-form