if i understand correctly, then wxcam shows,
but skype doesn't send a picture
really, for me skype gives an errors in console
tc@box:~$ skype
Skype V4L2: Could not find a suitable capture format
Skype V4L2: Could not find a suitable capture format
Starting the process...
Skype Xv: Xv ports available: 33
Skype XShm: XShm support enabled
Skype Xv: Using Xv port 63
Skype Xv: No suitable overlay format found
maybe should try to run skype, as recommended in this case
LD_PRELOAD=/usr/local/lib/libv4l/v4l1compat.so /usr/local/bin/skype
or
LD_PRELOAD=/usr/local/lib/libv4l/v4l2convert.so /usr/local/bin/skype
this must be tested, because unfortunately i'm can't test this now
now test picture is not visible for me, but possible that video is sent