Hi,

Thank you very much for generously sharing your
expertise to maintain gthumb.

I'm happy report I seem to have found a workaround
for a mysterious old bug.

It seems to me I may have replicated bug 769889 by
running gthumb.

    $ gthumb <a-directory>/<a-subdirectory> &

    (org.gnome.gThumb:1318): dconf-CRITICAL **: 19:00:16.845: unable to create file '/run/user/1000/dconf/user': Permission denied.  dconf will not work properly.


The ID of the user trying to run gthumb is 1000.

As you can see above, "1000" is in the path of the file
being complained about.


I fixed it by doing

    root$: mv /run/user/1000/dconf/user <another-directory>/<another-subdirectory>


Thanks,
Kingsley