(In reply to Takashi Iwai from comment #18) > (In reply to John Shand from comment #17) > > i can't believe the kernel guys let that one out of the bag. > > You're expecting them having always a magic crystal... > > Please double-check that kernel-default-5.10.4 breaks and > kernel-vanilla-5.10.4 works. If this is confirmed in 100%, it's a good hint > for tracking further. I was mistaken with the kernel 5.10.4 vanilla it doesn't work. arch linux kernel 5.10.4 does work