Re: [Linux-uvc-devel] QC fusion almost working in kopete

[Laurent P. <lau...@sk...>]

Hi Nick,

> I'm pretty new to the list, hopefully I can contribute something.

Seems you can at least contribute problems :-)

> Im running kopete 0.11.1 with kde 3.5.1 on a Gentoo system, kernel
> 2.6.14.3. I grabbed the driver (rev 16), compiled, installed,
> loaded...dmesg said all was well. I fired up kopete and the camera was
> working(!), though zoomed in so all I could see was my forehead :)

When Kopete receives an image bigger than it expects, only the upper-left 
corner of the image will be used instead of resizing it properly.

> I left the config window for a minute, then went back to it. Now the window
> just showed a pixelized QT logo. dmesg showed:
>
> uvcvideo: Failed to query UVC control 1 (unit 0) : -110.
>
> so I unloaded/reloaded the driver:
>
> usbcore: deregistering driver usbvideo
> uvcvideo: Found UVC 1.00 device <unnamed> (046d:08c1)
> uvcvideo: Failed to query UVC control 1 (unit 0) : -110.
> uvcvideo: Failed to initialize the device (-5).
> usbcore: registered new driver usbvideo
> USB Video Class driver (v0.1.0)

-110 is -ETIMEDOUT. This means the camera failed to answer fast enough. I'm 
not sure why this happens, but do you remember if the blue light was on when 
you went back to the Kopete window ? I noticed that the webcams are sometimes 
slower to answer when video streaming is on. It seems that your camera was 
left in an unknown state. Unplugging and replugging the webcam should fix the 
problem. If not, the USB subsystem might be screwed up.

Can you reproduce the problem ? Does unplugging and replugging the webcam make 
it functionnal again ? Could you try upgrading to kernel 2.6.15 and see if 
things are better ?

Laurent Pinchart