Last time I tried to get GDM to pass audio access on to Orca, I discovered I
needed to restart speech-dispatcher to get it to work.
Also, you should check the uid/gid for both GDM and the desktop
speech-dispatcher process. When I was last trying to get this working, I
discovered a discrepency
I got things up to login and did that and got the screen-saver after that.
When I ran orca I had sighted assistance looking at the screen and orca
did not come up talking. It did show all of its settings on screen
though. As a result, I removed mate and mate-extra and orca and brltty
and