[mythtv-users] Puzzel

[Daryl McDonald]

Since the last time I used it for zoom in windows, I  disconnected the USB.
Now as I try your suggestions it works in Cheese and Zoom. I assume, like
other times, if I leave it connected and try to use zoom later it will not
work. Then when I shut the PC  down I will get a USB error 110 (can't
remember the exact syntax) and the webcam gets warm. None of these symptoms
are present with windows, even when I used windows more than Ubuntu, a few
weeks ago.
Ubuntu software center has the QV4L2 app, which I installed, but I don't
know how to use it.

On Fri, May 27, 2022 at 11:49 AM Hika van den Hoven <hikavdh at gmail.com>
wrote:

> Hoi Daryl,
>
> Friday, May 27, 2022, 4:17:21 PM, you wrote:
>
> > Hoi Daryl,
>
> > Friday, May 27, 2022, 3:24:40 PM, you wrote:
>
> >> Hoi Hika, I hope you still like solving puzzels. I need help
> >> solving this one, and it's not myth related. I run a dual boot
> >> windows 11 and Ubuntu 22.04. I have a 5 mega pixel webcam that works
> >> well in windows and rarely in Ubuntu. sometimes with "cheese" and
> >> even less with "Zoom". Because it always works in windows, I assume
> >> its a software issue. Googling it gets close, but not exactly it.
> >> Have you got any suggestions?   TIA  Daryl
>
> > This is almost certainly a driver problem. Look for which kernel
> > version do support this specific model. Check on kernel.org or
> > linuxtv.org and on the site from the manufacturer. You might have to
> > compile your own kernel driver.
> > I assume it's usb. On plugging in a /dev/videox, just like with an
> > analog tv card, should be created. Where x is a number, probably 0 but
> > depending on the presence of other analog video devices. It works
> > exactly the same as an analog tv-tuner. You can also create rules to
> > give the device a more meaningfull name.
>
> > This is my rule for my Logitec C270 webcam (I only use Logitec if
> > possible):
>
> > # Logitec HD webcam C270
> > # usb/vendor id 046d/0825
> > # driver cx8800 with external soundcard
> > SUBSYSTEM=="video4linux", \
> >         KERNEL=="video*", \
> >         ATTRS{idVendor}=="046d", \
> >         ATTRS{idProduct}=="0825", \
> >         SYMLINK+="v4l/HD-C270/video"
> > SUBSYSTEM=="sound", \
> >         KERNEL=="dsp*", \
> >         ATTRS{idVendor}=="046d", \
> >         ATTRS{idProduct}=="0825", \
> >         SYMLINK+="v4l/HD-C270/audio"
>
> > Also you should then see an analog audio-in device for the mic. If you
> > use pulseaudio it should pop up in your audio preferences.
>
>
> One other thing. There is a v4l2 test utility "qv4l2". It's part of
> the v4l-utils package(Video for Linux).
> I do not know if it's available in Ubuntu or how exactly it is called.
> But it might be helpfull troubleshooting.
>
>
>
> Tot mails,
>   Hika                            mailto:hikavdh at gmail.com
>
> "Zonder hoop kun je niet leven
> Zonder leven is er geen hoop
> Het eeuwige dilemma
> Zeker als je hoop moet vernietigen om te kunnen overleven!"
>
> De lerende Mens
>
>
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