[Gllug] running TV and webcam simultaneously

Paul Brazier pbrazier at cosmos-uk.co.uk
Fri Apr 19 12:27:14 UTC 2002

I've got a TV card (PCI) and a Webcam (USB), both of which work under
Linux on their own but I can't seem to be able to get them to work
simultaneously or even to be able to switch between the two.

If I boot with the webcam unplugged everything defaults to the TV card.
If I boot with the webcam plugged in as well xawtv shows the webcam
output only but the xawtv menu that selects the video input doesn't have
an option to switch to the TV card.

I think I have all the modules installed for both OK. (bttv, pwc, pwcx,

It seems to be done through /dev/video symlinked to /dev/video0. I've
tried changing the symlink around to /dev/video1 etc but no luck.

So firstly is it possible in theory to have them both running at once
and secondly how do I switch between the two video inputs without

I'm using Debian with a self-compiled 2.4.18 kernel.


This e-mail may contain information that is privileged, confidential or 
otherwise protected from disclosure. It must not be used by, or its 
contents copied or disclosed to persons other than the intended 
recipient. Any liability (in negligence or otherwise) arising from any 
third party acting, or refraining from acting, on any information 
contained in this e-mail is excluded. If you have received this e-mail 
in error please notify our Systems Administrator on 020 8695 4111 and 
delete the e-mail. 

It is the responsibility of the recipient to ensure that the onward 
transmission, opening or use of this message and any attachments will 
not adversely affect its systems or data. Please carry out such virus 
and other checks as you consider appropriate. No responsibility is 
accepted by Cosmos PLC in this regard.


Gllug mailing list  -  Gllug at linux.co.uk

More information about the GLLUG mailing list