[Linux-uvc-devel] problem with audio/video Microsoft Lifecam studio Hd

[Andrea G. <par...@gm...>]

Hi, i've a problem with Microsoft Lifecam studio HD.
  I've installed openmeetings 1.9 on server linux ubuntu 10.04.
I've installed a client with ubuntu 11.10, kerne 3.0.3, uvcvideo verision 1.1.0, firefox 8, adobe flash
11.1.102.55 and java sun 1.6.
I've a Microsoft Lifecam studio Hd that works with other application;
so when i test it with audio and video in the preview windows it
works, but when i enter in the room the screen is black.
If i changed the audio device with the internal realteck, it works and
i can view the images.

So if i do the same thing in windows client it works correctly.

In the list of device i found :

Despite being able to work with lower

	 USB bandwidths, this device always requests the maximum possible bandwidth,
       even for the MJPEG format. Using one of those cameras in conjunction with
       another USB device (including the camera internal microphone) will likely
       fail. You can tell the uvcvideo driver to estimate the required bandwidth
       instead of trusting the camera by setting the FIX_BANDWIDTH quirk. This will
       only affect uncompressed formats, and even there there's no guarantee of
       success.


So i've to use the quirks but not work because i think that the stream is MJPEG and no uncompressed.
There is a way to forcing use uncompressed format or other solution?

Andrea