https://bugzilla.kernel.org/show_bug.cgi?id=205089
--- Comment #20 from Alois Nespor (info@aloisnespor.info) --- (In reply to Alois Nespor from comment #15)
i can confirm, have same problem now with Ryzen 5 3400G (RX Vega 11).
kernel 5.13.4 and mesa 21.1.5
seems fixed with linux-firmware 20210818.c46b8c3 for me see https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/... they revert some fw due stability issues