there’s a recently fixed bug upstream that may be causing this. see this previous discussion for a workaround that resolved the issue for me. the fix has been merged into AMD’s drm repo and the patch has been submitted to the mainline but I don’t think there’s been a release yet with the fix.
so check dmesg and see if this is what you’re experiencing, because if so, it’s a relatively simple workaround for the time being. bit annoying that this made it into a release but at least the fix isn’t involved.