Hi Diederik, Am 08.02.21 um 12:47 schrieb Diederik de Haas: > Hi, > > This is basically me forwarding the bug I reported on Debian's BTS: > https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=978025 > > TL;DR: I have a RPi 3B+ running pure Debian Bullseye arm64 (~from > raspi.debian.net), named rpi-mpd, connected via HDMI cable to my AV Receiver. can you please confirm that the bcm2835-audio driver causing the issues? > Playing music worked fine with kernel 5.9, but with 5.10.2-1 the music > (quality) became not good to quite horribly, because of (static) noise and > distortion. > With kernel version 5.10.9 (linux-image-5.10.0-2-arm64) it all seemed fixed, > but returned with 5.10.12 (linux-image-5.10.0-3-arm64) and is also present > with 5.10.13. I cannot explain why 5.10.9 works for you, but we had multiple regressions in 5.10. Currently i cannot see any of the fixes by Phil Elwell in linux-stable. Maybe they won't apply and needs to be backport manually. Just for reference here are the revelant patches: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/drivers/staging/vc04_services?h=next-20210205&id=96ae327678eceabf455b11a88ba14ad540d4b046 https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/drivers/staging/vc04_services?h=next-20210205&id=88753cc19f087abe0d39644b844e67a59cfb5a3d Could you please try? Best regards Stefan > > I can consistently reproduce this issue, rebooting into 5.10.9 and playing > music is fine again, so I *think* this is not a local issue. > This ML is the closest I can think of as 'upstream', so hopefully more insight > can be accomplished here ... and a fix. > > Cheers, > Diederik > > _______________________________________________ > linux-rpi-kernel mailing list > linux-rpi-kernel@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/linux-rpi-kernel _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
