Comment 4 for bug 93417

A workaround that seems to work for me is to download, compile and load the vloopback module:

http://www.lavrsen.dk/twiki/pub/Motion/VideoFourLinuxLoopbackDevice/vloopback-1.1-rc1.tar.gz

and then run:

./resize /dev/video0 /dev/video1 640x480 640x480 yuv420p

Then use /dev/video2 for video input. This seems to force ekiga to open the camera at 640x480 and do scaling itself. Too bad there isn't just an option for this in ekiga.