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Bug#987576: linux: Please enable CONFIG_SND_AUDIO_GRAPH_CARD

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  Bug#987576: linux: Please enable CONFIG_SND_AUDIO_GRAPH_CARD Diederik de Haas <didi.debian@cknow.org> - 2021-04-26 02:40 +0200
    Bug#987576: linux: Please enable CONFIG_SND_AUDIO_GRAPH_CARD Vincent Blut <vincent.debian@free.fr> - 2021-04-26 15:10 +0200
    Bug#987576: linux: Please enable CONFIG_SND_AUDIO_GRAPH_CARD Diederik de Haas <didi.debian@cknow.org> - 2021-05-10 18:00 +0200
    Bug#987576: marked as done (linux: Please enable CONFIG_SND_AUDIO_GRAPH_CARD) "Debian Bug Tracking System" <owner@bugs.debian.org> - 2021-09-10 00:40 +0200

#70794 — Bug#987576: linux: Please enable CONFIG_SND_AUDIO_GRAPH_CARD

Source: linux
Version: 5.10.28-1
Severity: wishlist

https://github.com/torvalds/linux/commit/ddf3fa8b8a16e076f247c115a73356b4b0d83a33
is titled: "arm64: defconfig: Enable CONFIG_SND_AUDIO_GRAPH_CARD"
and the secondary commit msg is 
"CONFIG_SND_AUDIO_GRAPH_CARD is needed to use HDMI sound with video"

According to the above mentioned URL, it's been part of arm64's
defconfig since 2018-05-02 and included since kernel version 4.18-rc1.
When researching how to get HDMI audio working on a Rock64, this was one
of the settings they (on IRC freenode#linux-rockchip) said needed to be
enabled for it to work.
Checking on the config on this RPi3B+ indicated that it wasn't enabled
on arm64, so hereby the request to enable it.
I can imaging that it would also make sense to enable it on armhf, but I
don't know if that's needed or maybe already enabled there, but I assume
the Debian kernel maintainers can make an informed judgement on that.

Cheers,
  Diederik

-- System Information:
Debian Release: bullseye/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'testing-security'), (500, 'unstable')
Architecture: arm64 (aarch64)

Kernel: Linux 5.10.0-6-arm64 (SMP w/4 CPU threads)
Kernel taint flags: TAINT_CRAP
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

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#70800

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Le 2021-04-26 02:19, Diederik de Haas a écrit :
> Source: linux
> Version: 5.10.28-1
> Severity: wishlist
> 
> https://github.com/torvalds/linux/commit/ddf3fa8b8a16e076f247c115a73356b4b0d83a33
> is titled: "arm64: defconfig: Enable CONFIG_SND_AUDIO_GRAPH_CARD"
> and the secondary commit msg is 
> "CONFIG_SND_AUDIO_GRAPH_CARD is needed to use HDMI sound with video"
> 
> According to the above mentioned URL, it's been part of arm64's
> defconfig since 2018-05-02 and included since kernel version 4.18-rc1.
> When researching how to get HDMI audio working on a Rock64, this was one
> of the settings they (on IRC freenode#linux-rockchip) said needed to be
> enabled for it to work.
> Checking on the config on this RPi3B+ indicated that it wasn't enabled
> on arm64, so hereby the request to enable it.

I sent a MR [1] to enable this option.

> I can imaging that it would also make sense to enable it on armhf, but I
> don't know if that's needed or maybe already enabled there, but I assume
> the Debian kernel maintainers can make an informed judgement on that.

It is already provided as a module on armhf.

> Cheers,
>   Diederik

Have a good day,
Vincent

[1] https://salsa.debian.org/kernel-team/linux/-/merge_requests/351

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#71495

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There's an upstream commit (part of 5.12) that Vincent referenced that nicely
illustrates the difference between what I want to achieve with this bug report
and a possible solution applied in that commit (IIUC):
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=25572fb5aa986bdbb35d06c0fb52a9b9d9b3b2c9

In that commit there's a switch from 'audio-graph-card' to 'simple-audio-card'.
If that change were applied to Debian, that should make the audio work (too)
on a Rock64. And if upstream would backport that commit to 5.10, Debian would
only have to upgrade to a latter 5.10 version to get it.

But there's a line in that commit message that illustrates what I want to 
achieve with this bug report:

"For newly adding nodes, ASoC guys recommend to use audio-graph-card."

What I get from that and is what I assumed previously, is that 
'audio-graph-card' is seen as 'basic building block' for audio in SBCs.
(Just like 'simple-audio-card' is). And that is why I want it enabled in 
the Debian kernel(s).
Just a 'backport' of above referenced commit would fix my issue on my Rock64s,
but afaic it wouldn't fix this bug.

Cheers,
  Diederik

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#72869 — Bug#987576: marked as done (linux: Please enable CONFIG_SND_AUDIO_GRAPH_CARD)

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Your message dated Thu, 09 Sep 2021 22:34:49 +0000
with message-id <E1mOSd7-000I2G-LI@fasolo.debian.org>
and subject line Bug#987576: fixed in linux 5.14.2-1~exp1
has caused the Debian Bug report #987576,
regarding linux: Please enable CONFIG_SND_AUDIO_GRAPH_CARD
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
987576: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=987576
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems

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