** Changed in: pulseaudio (Ubuntu Focal)
Assignee: (unassigned) => Hui Wang (hui.wang)
** Changed in: alsa-ucm-conf (Ubuntu Focal)
Assignee: (unassigned) => Hui Wang (hui.wang)
** Changed in: alsa-ucm-conf (Ubuntu Groovy)
Assignee: (unassigned) => Hui Wang (hui.wang)
** Changed in: alsa-lib (Ubuntu Focal)
Assignee: (unassigned) => Hui Wang (hui.wang)
** Changed in: alsa-lib (Ubuntu Groovy)
Assignee: (unassigned) => Hui Wang (hui.wang)
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https://bugs.launchpad.net/bugs/1889217
Title:
Make digital mic on the AMD renoir machines work under gnome desktop
Status in alsa-lib package in Ubuntu:
New
Status in alsa-ucm-conf package in Ubuntu:
New
Status in pulseaudio package in Ubuntu:
New
Status in alsa-lib source package in Focal:
New
Status in alsa-ucm-conf source package in Focal:
New
Status in pulseaudio source package in Focal:
New
Status in alsa-lib source package in Groovy:
New
Status in alsa-ucm-conf source package in Groovy:
New
Status in pulseaudio source package in Groovy:
New
Bug description:
[Impact]
On the LENOVO AMD renoir machines, there is a digital mic directly
connected to the APU instead of the codec, so there are two separate
sound cards in the system, one is for analogue codec driven by hda
driver, the other is for the dmic driven by ASoC acp driver.
The current audio stack (pulseaudio + alsa-ucm-conf + alsa-lib) doesn't
support this design yet, it could support all audio devices on the codec
well, but it doesn't support that dmic well. In the gnome-control-center,
the dmic becomes two input devices: analog input and multichannel input,
and users can only record sound from analog input, the multichannel input
can't function at all. Besides this issue, there is another issue, after
users plug an external mic, the external mic can't replace the dmic
automatically, this gives users a bad experience since this behaviour is
different from the other audio designs.
[Fix for pulseaudio]
we need to backport 3 patches:
2ae94c141f device-port: queue CARD CHANGE event before update default sink
c8653c13fa alsa: adjust ucm sink/source priority according to ports priority
A patch not merged by upstream:
https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/305
[Test Case]
On the AMD renoir machines:
Boot the system with these updated packages (already backported kernel
drivers to focal and oem-5.6 kernels), open the gnome-control-center,
we could see the digital mic in the input device tab, and only one
input device. we could record sound through this dmic, we could play
sound through the speaker, plug a headset, we could see the output
device become headphones and the input device become headset mic, we
could play sound to headphone and record sound from headset mic, plug
a hdmi monitor, there is hdmi audio choice, play sound to hdmi audio,
we could hear the sound from the speaker on the monitor. Suspend and
resume, redo the previous steps, all audio devices still work well.
On other machines:
Boot the system with all updated packages or partial updated packages,
check all input devices and output devices, they worked the same as
before. this SRU doesn't bring any impact on other machines.
[Regression Risk]
Low
For alsa-ucm-conf, this SRU adds two new folders and only minimum
changes on existing folders, and these changes are under control and
are for supporting acp driver.
For alsa-lib, this SRU only adds the patches to support the ucm 3, and
nearly all changes are in the ucm folder.
For pulseaudio, this SRU only integrate 3 patches, and 2 of them are
for auto switching, and they are small patches and already upstreamed.
the left patch are specific to renoir audio, it will not bring impact
to other machines.
Also, we tested these changes with below machines:
A LENOVO AMD renoir laptop, all audio function works and no regression
found
A DELL laptop with intel dmic, all audio function works and no
regression found
A DELL laptop with intel soundwire audio, all audio function works and
no regression found
To manage notifications about this bug go to:
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