Bug#948442: gdm3: Unable to enable Orca

[Simon McVittie]

On Fri, 10 Jan 2020 at 19:11:09 +0100, Bernhard Übelacker wrote:
> I guess this happens because of using another dbus process.
> When using the already running dbus it seemed to work immediately:
> 
>   $ sudo -u Debian-gdm bash -c 'export DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/$(id -u "Debian-gdm")/bus; GSETTINGS_BACKEND=dconf gsettings set org.gnome.desktop.a11y.applications screen-reader-enabled true'

I would be very surprised if this was considered to be a correct way to
configure gdm. Instead, please edit /etc/gdm3/greeter.dconf-defaults to
add something like this (untested):

[org/gnome/desktop/a11y/applications]
screen-reader-enabled=true

If this is indeed the correct configuration option, we can add it,
commented-out, in the example file provided with gdm3.

If you have successfully set the setting in dconf via a complicated
command-line involving sudo, dbus, dconf and gsettings, you will need
to undo that change by using
"gsettings reset org.gnome.desktop.a11y.applications screen-reader-enabled"
(with whatever wrapper commands you used for "gsettings set"), which will
reset it to the modified default from /etc/gdm3/greeter.dconf-defaults.

>   https://wiki.debian.org/accessibility#gdm_accessibility

This starts with information about Debian 5 'lenny', a release from 2009
that reached the end of its support lifetime in 2012, so I suspect it
would greatly benefit from being rewritten by someone who knows about
accessibility to concentrate on versions that are currently supported.

    smcv