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takaswie / linux-firewire-dkms

Currently this repository is maintained for Linux firewire subsystem and unit drivers.
http://ieee1394.docs.kernel.org/
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mic Input no longer avasilable after upgrading to ubuntu 22.10 #48

Closed epifanio closed 1 year ago

epifanio commented 1 year ago

My ultralite mk3 was working fine with this driver, the input mic was detected and usable - after upgrading to ubuntu 22.10 the device is still listed in my audio settings - but no signal is arriving from the microphone. I tested wiring connections and hardware settings on windows - all seems to work properly.

Any clue on how to debug the issue? Thanks!!!

takaswie commented 1 year ago

Hi @epifanio,

I'm sorry for your inconvenience. For my information, would I ask you the previous version of Ubuntu before upgrading?

Regards

epifanio commented 1 year ago

Hi @takaswie , thanks for your reply - I was on Ubuntu 22.04 - I don't know if related but Ubuntu 22.10 moved to a different audio setting - from PulseAudio to PipeWire https://www.omgubuntu.co.uk/2022/05/ubuntu-22-10-makes-pipewire-default

takaswie commented 1 year ago

I was on Ubuntu 22.04 - I don't know if related but Ubuntu 22.10 moved to a different audio setting - from PulseAudio to PipeWire https://www.omgubuntu.co.uk/2022/05/ubuntu-22-10-makes-pipewire-default

Thanks.

As long as I tested ALSA firewire-motu driver in linux-modules-extra-5.19.0-23-generic package (5.19.0-23.24), I have no regression between these releases. I think the change of sound server service from pulseaudio to pipewire brings the apparent regression to you.

I note that the 1st/2nd channels in PCM frame of capture are for Stereo Return 1-2 bus in vendor's manual, therefore you need to use 3rd/4th channels for XLR microphone inputs. I guess that pipewire simply deliver the first two channels to your applications, while pulseaudio multiplexes all of channels to construct a few channels (e.g. stereo) then delivers the result to the applications.

I think we have the way to configure pipewire connection to use the 2nd pair of channels instead of the 1st pair, while I'm not so good at pipewire itself. Please contact to pipewire user or developer for the way.

Cheers.

epifanio commented 1 year ago

I don't know how to re-configure pipewire - I tried to have a look and got lost - however ... switching back to pulseaudio with:

systemctl –user –now enable pulseaudio

gave me back a working mk3 audio input

takaswie commented 1 year ago

I don't know how to re-configure pipewire - I tried to have a look and got lost - however ... switching back to pulseaudio with:

systemctl –user –now enable pulseaudio

gave me back a working mk3 audio input

Thanks for the trial. The issue seems to be in the way to use sound server, instead of regression of ALSA firewire-motu driver. Let me close the issue, thank you.