https://bugzilla.kernel.org/show_bug.cgi?id=205497
--- Comment #17 from Luya Tshimbalanga (luya@fedoraproject.org) --- Created attachment 285951 --> https://bugzilla.kernel.org/attachment.cgi?id=285951&action=edit Screenshot of radeontop running with patched kernel
Running radeontop with the patched test kernel, I can confirm the patch fixed the freezing issue which no longer occurs as the card is correctly picked up.