Same issue with Canon 40D on Ubuntu 13.04 x64, on both USB 2 and 3 of Acer Aspire V5-571.
Killing the process /usr/lib/gvfs/gvfs-gphoto2-volume-monitor removes the camera from the Nautilus sidebar, but makes no difference in Shotwell or any other programs.
Same issue with Canon 40D on Ubuntu 13.04 x64, on both USB 2 and 3 of Acer Aspire V5-571.
Killing the process /usr/lib/ gvfs/gvfs- gphoto2- volume- monitor removes the camera from the Nautilus sidebar, but makes no difference in Shotwell or any other programs.
Attached is the debug log from gphoto2.