Bug#1091358: [RFH] Bug#1091358: mumble: crashes on startup with pipewire backtrace

[Chris Knadle]

tags 1091358 + help
thanks

This bug seems to be triggered by a missing dependency on package 
pipewire-bin which contains /usr/share/pipewire/client.conf 
configuration needed to use pipewire.
It is not clear where the dependency needs to be added; adding it to 
Mumble does not seem to make sense as it can use several audio backends.

Thanks

    -- Chris

Chris Knadle
Chris.Knadle at coredump.us

On 1/2/25 13:47, Chris Knadle wrote:
> Hello Phillip.
>
> The 'recommends' alternatives would need to include pipewire, pulse, 
> jack, and ALSA, (Mumble has supported all of these), and not sure what 
> else. And because of that I think the recommends wouldn't work, 
> because pulseaudio alone would satisfy the recommends, which I believe 
> is the situation here.
>
> I've looked at the build dependencies for the newer Mumble and it also 
> doesn't include any dependencies on pipewire.
>
> https://github.com/mumble-voip/mumble/blob/master/docs/dev/build-instructions/build_linux.md 
>
>
> I was going to say pipewire should have a dependency on pipewire-bin 
> -- but it already does. Pipewire-pulse, though, does not have a 
> dependency on pipewire-bin. So maybe that's what's going on -- that 
> pulse is the only audio backend in use, with a pipewire compatibility 
> which doesn't load the pipewire configuration package because it's not 
> actually in use. A few months ago I was using a Debian system running 
> pulse with pipewire-pulse loaded and not pipewire, and I was having 
> audio problems. I ended up having to switch to pipewire "wholesale" to 
> get audio working well, because at the time I remember pulseaudio and 
> pipewire conflicting.
>
> Now looking at my local system I'm a bit more confused, because 
> several VMs I'm using have pipewire as well as pulseaudio loaded at 
> the same time.
> However given the difficulty run into with this bug, I can sort of see 
> why running both would be needed.
>
> It feels like we need more information and more discussion with those 
> more familiar with audio libraries and dependencies to get somewhere 
> with this.
>
>    -- Chris
>
> Chris Knadle
> Chris.Knadle at coredump.us