G'day, >Just acquired two Optias (not AF) for use on dell laptops running Ubuntu >Gutsy, after spotting them on the http://linux-uvc.berlios.de/#devices page. >Got them to work with Ekiga after selecting v4l2 but with horrible quality. >Compiled luvcview and that gave just slightly better quality.
I've noticed the same problem you've been having but with the Creative Optia *AF*. When I plug it into a machine that only has low/full speed usb (max 12mbit/s), either the driver or the hardware restricts me to MJPG at a max res of 640x480 (with poor quality). If I plug it into a machine with hi-speed usb (max 480mbit/s) then I can choose MJPG (with better quality) or YUYV with a max resolution of around 1600x1200. Something must happen at the webcam interrogation to determine which formats are available. Check your logs when you plug in the webcam. If it says xxx_ohci instead of xxx_ehci, then you're probably just running at lo/full speed. eg: Feb 11 11:54:42 xxxx user.info kernel: usb 1-2: USB disconnect, address 3 Feb 11 11:54:50 xxxx user.info kernel: usb 1-2: new full speed USB device using at91_ohci and address 4 Feb 11 11:54:50 xxxx user.info kernel: usb 1-2: configuration #1 chosen from 1 choice Feb 11 11:54:50 xxxx user.info kernel: uvcvideo: Found UVC 1.00 device <unnamed> (041e:4058) The fix for me was to either run on a machine with a better usb controller or to make sure your xxx_ehci module is running (check through modprobe). Or possibly checkout the latest version of the uvcvideo module from svn. - Nick _______________________________________________ Linux-uvc-devel mailing list [email protected] https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
