Bug#1105057: gdm3: remove non-functional settings from default /etc/gdm3/greeter.dconf-defaults

[Simon McVittie]

Package: gdm3
Version: 48.0-1
Severity: wishlist

/etc/gdm3/greeter.dconf-defaults includes example settings for several 
things that are no longer effective, either because they are intentionally 
no longer configurable as part of the upstream visual design or because 
they don't act on the UI toolkit that is now used:

* [org/gnome/desktop/interface] gtk-theme
* everything in [org/gnome/desktop/background]

We should drop those options from the default/example configuration 
file. If we are changing it *anyway* for #1105055 and/or #1105056, then 
this would be a good opportunity to clean out non-functional options.

Meanwhile, if there are options that we want to make higher-visibility, 
we could add them. I think the only option mentioned in 
https://help.gnome.org/admin/system-admin-guide/stable/login.html.en 
that is missing from our example file is:

    [org/gnome/login-screen]
    enable-fingerprint-authentication=false

which might make sense to add.

    smcv