Re: Sound issues with the 5.10.x kernel (alsa)

2021-03-28 Thread Ryutaroh Matsumoto
>> i assume you set this option in the config.txt? This shouldn't have any >> affect for the mainline kernel / DT. > I am aware of that... I include my config.txt on RPi4B for reference... arm_64bit=1 enable_uart=1 upstream_kernel=1 kernel=vmlinuz-5.10.0-5-rt-arm64 initramfs

Re: Sound issues with the 5.10.x kernel (alsa)

2021-03-28 Thread Ryutaroh Matsumoto
Hi Stefan, thank you for your response. > i assume you set this option in the config.txt? This shouldn't have any > affect for the mainline kernel / DT. I am aware of that... I did "snd_bcm2835 enable_hdmi=0" in /etc/modules. "modinfo snd_bcm2835" shows as below. Doesn't it indicate snd_bcm2835

Re: Sound issues with the 5.10.x kernel (alsa)

2021-03-28 Thread Stefan Wahren
Hi, Am 28.03.21 um 07:58 schrieb Ryutaroh Matsumoto: >> I think the root cause of this issue is that both vc4.ko and snd_bcm2835.ko >> try to provide ALSA sinks to HDMI audio outputs from RPi. >> Why do the two drivers provide the same functionality for the same device? >> It seems nonsense. >>

Re: Sound issues with the 5.10.x kernel (alsa)

2021-03-27 Thread Ryutaroh Matsumoto
> I think the root cause of this issue is that both vc4.ko and snd_bcm2835.ko > try to provide ALSA sinks to HDMI audio outputs from RPi. > Why do the two drivers provide the same functionality for the same device? > It seems nonsense. > There must be some coordination between vc4.ko and

Re: Sound issues with the 5.10.x kernel (alsa)

2021-03-27 Thread Ryutaroh Matsumoto
Hi all, From: Stefan Wahren Subject: Re: Sound issues with the 5.10.x kernel (alsa) Date: Mon, 8 Feb 2021 13:22:56 +0100 >> 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 RP

Re: Sound issues with the 5.10.x kernel (alsa)

2021-02-16 Thread Diederik de Haas
On dinsdag 16 februari 2021 01:12:12 CET Diederik de Haas wrote: > On maandag 8 februari 2021 13:22:56 CET Stefan Wahren wrote: > > 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

Re: Sound issues with the 5.10.x kernel (alsa)

2021-02-15 Thread Diederik de Haas
On maandag 8 februari 2021 13:22:56 CET Stefan Wahren wrote: > 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: > >

Re: Sound issues with the 5.10.x kernel (alsa)

2021-02-08 Thread Diederik de Haas
On maandag 8 februari 2021 15:00:26 CET Ryutaroh Matsumoto wrote: > > 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. > > The difference in Debian kernel 5.10.9 was that

Re: Sound issues with the 5.10.x kernel (alsa)

2021-02-08 Thread Diederik de Haas
On maandag 8 februari 2021 13:22:56 CET Stefan Wahren wrote: > > 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? How

Re: Sound issues with the 5.10.x kernel (alsa)

2021-02-08 Thread Stefan Wahren
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