[sf-lug] Cheese has no webcam

[Yong Tang]

Rick, thank you for helping me understand why Pipewire moved my Cheese.

You are right, I could not find any trace for it from the logs.

Yong

On 3/16/22 15:00, Rick Moen wrote:
> Quoting Yong Tang (tomcatcantalk at outlook.com):
>
>> I did install and remove Pipewire before this trouble occurred. Is
>> it possible I can prove that Pipewire made this trouble and what it
>> did to my cheese through log analysis?
> I have no relevant experience with PipeWire
> (https://en.wikipedia.org/wiki/PipeWire), _but_, if you consider its
> design objective to be a "processing engine on top of audio and video
> devices that can be used to support the use cases currently handled by
> both pulseaudio and JACK" (https://pipewire.org/), i.e., it tries to be
> the middle-layer plumbing for all A/V traffic -- it'd be not at all
> surprising to hear that it might make changes to the groups/permissions
> used by relevant applications.
>
> There's a large amount of complex documentation at
> https://gitlab.freedesktop.org/pipewire/pipewire/-/wikis/home ,
> which is not surprising, since it's at Freedesktop.org, the hallowed
> home of very complex desktop-software subsystems and the people who gave
> us GNOME, systemd, and PulseAudio.
>
> Anyway, you could try grepping your logfiles for system events shortly
> after you installed PipeWire, but there's no special to reason any would
> show there.
>
> (I cherish this thread for its surrealistic Subject header, by the way.)
>
>
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