I also had problems in karmik, the device is gPhoto instead gphoto ( notice the capital L). It also takes a couple of seconds to umount so I added it to the exec.
I fixed my gthumb-import.desktop in karmik like this:
/usr/share/applications/gthumb-import.desktop
Exec=sh -c 'gvfs-mount -u ~/.gvfs/g*hoto2*; sleep 3 ; exec gthumb --import-photos'
I also had problems in karmik, the device is gPhoto instead gphoto ( notice the capital L). It also takes a couple of seconds
to umount so I added it to the exec.
I fixed my gthumb- import. desktop in karmik like this:
/usr/share/ applications/ gthumb- import. desktop
Exec=sh -c 'gvfs-mount -u ~/.gvfs/g*hoto2*; sleep 3 ; exec gthumb --import-photos'