Comment 3 for bug 713838

What version of gThumb is this (check in Help > About)?

It could be that the old importer script is still present somewhere on the system, and it is unmounting the gvfs mounts ("gvfs-mount -u ~/.gvfs/gphoto2*").

Old versions of gThumb (2.10.x) conflicted with the gvfs/gphoto backend, and had to umount those gvfs mounts.

The new versions (2.12.x) are compatible with the gvfs/gphoto backend, and unmounting things would actually be harmful.

So, look for some "helper script" that might be unmounting things.

I don't actually use Ubuntu, so this theory could be all wrong...

- Mike