Old webcam problems

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Hi folks;

I have an elderly labtec webcan, usb interface that can run (theoretically) 
in 640x480 as well as 320x240.  Plugged directly into a motherboard 
breakout port, it runs well at 320x240, but if I select 640x480 in cheese, 
it only works for about 15% of a frame and errors out with hundreds of 
these lines in the terminal window I launched it from:

libv4lconvert: Error decompressing JPEG: fill_nbits error: need 7 more bits
libv4lconvert: Error decompressing JPEG: fill_nbits error: need 3 more bits
libv4lconvert: Error decompressing JPEG: fill_nbits error: need 4 more bits
libv4lconvert: Error decompressing JPEG: fill_nbits error: need 2 more bits

The driver appears to be the (from lsmod)
gspca_zc3xx            34210  0 
gspca_main             17233  1 gspca_zc3xx

>From dmesg:
[gene@coyote log]$ grep gspca dmesg
gspca: main v2.10.0 registered
gspca: probing 046d:08a2
gspca: video0 created

I can make it work about 90% of the time when booted to 2.6.35.7, but its a 
100% failure with 2.6.36 until I select 320x240.

Is there anything I can do?

Thanks.

-- 
Cheers, Gene
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Someday your prints will come.
		-- Kodak
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