OK, try setting GDM to debug mode instead?
    
    I tested this workaround on staging before pushing it to git and
    it worked, but then when I pushed it to prod it didn't work. On
    stg I also had this to set GDM to debugging mode, so maybe this
    is also needed for the workaround to work for some reason?
    
    Signed-off-by: Adam Williamson <awilliam@redhat.com>