USB Webcam Troubles

[kubes...@mailfence.com]

None of the apps in my fedora or debian appvms can see my usb webcam. It's a Logitech C910.

Dom0 sees the webcam just fine with qvm-usb.

Sys-usb sees the webcam just fine with lsusb.

After attaching it to any debian or fedora appvm using the system tray widget, the appvm itself sees the webcam just fine with lsusb.

But none of the applications in any debian or fedora appvms can detect the webcam.

I'm stumped. I've searched and searched and searched, but I am all out of clues. Can someone here please help? I really don't want to use a non-qubes machine for quarantine teleconferencing.

[kubes...@mailfence.com]

So, I tried creating a variety of different HVMs and assigning the USB PCI devices to them, but the results were the same.

Maybe the Logitech C910 is just cursed?

Perhaps someone could recommend a webcam known to be compatable with Qubes?

[kubes...@mailfence.com]

Eureka!

I started a Jitsi meeting, and then I assigned the web cam to the AppVM using the notification tray widget, and it worked!

w00t!

Thank you!

[Mike Keehan]

On 4/8/20 12:32 AM, kyss...@gmail.com wrote:

> FYI, I've really only tried this with a limited number of applications plus
> Qubes but, in Hangouts for instance - I learned the hard way that in order
> to use my webcam (I believe I can attest to the specific model you mention
> but don't ask me to state it clearly) I had to start a call with someone
> then attach the web cam (meaning using either qvm-usb in dom0 or the GUI
> equivalent for a logical attachment & NOT meaning that I then physically
> attach) to the VM where the call exists already. I was of course using a
> browser & there were items to work out & changes that could lead backward
> if you didn't pay attention, but in general it works for me.
>

Thank you for this insight!

I have found that connecting my Logitech camera to a usb port, then
using the Qubes qui widget to connect it to the relevant qube with
Facebook messenger already running in Chromium, will allow the camera
to work when I call someone up!! Firefox doesn't work.

After finishing a call, I have to disconnect the camera from the qube,
remove the camera from the usb port, and then go through the procedure
above again, if I want to make another call. It's a bit of a palaver,
but it works most of the time.

Thanks again,

Mike.