Hello, Laurent!

> Your problem is then probably caused by a regression in the uvcvideo driver 
> between 2.6.28 and now. Could you try bisect the problem ? If you're not 
> familiar with the concept it will be easier to start by trying vanilla 
> kernels 
> 2.6.28, 2.6.29, 2.6.30 and 2.6.31, and tell me at which version your webcam 
> starts failing (2.6.28 should work).

Before doing this I have installed the cam on another comp (also Ubuntu 9.04). 
Download and compile driver... and it's work!!!

I think problem in hardware or in usb-driver, but not in uvcvideo driver. First 
old comp have only usb 1.0 ports, second new comp have usb 2.0 ports, may be 
problem is there...

BTW, it's strange, on old comp (usb 1.0) the cam supports only MJPEG, and on 
new (usb 2.0) only YUYV:

[1] cap.driver: "uvcvideo"
[1] cap.card: "A4 TECH USB2.0 PC Camera J"
[1] cap.bus_info: "0000:00:1d.7"
[1] cap.capabilities=0x04000001
[1] - VIDEO_CAPTURE
[1] - STREAMING
[1] Supported palettes:
[1] 0: YUYV (YUV 4:2:2 (YUYV))
[1] index_format 6 Test palette YUYV (640x480)

Thanks for the help, question it is closed.

Best regards,

Iodine
_______________________________________________
Linux-uvc-devel mailing list
[email protected]
https://lists.berlios.de/mailman/listinfo/linux-uvc-devel

Reply via email to