Re: [gdm-list] GDM 2.24 design defect for supporting multiple sessions

[Brian Cameron <Brian Cameron Sun COM>]

Jason:

Sounds nasty.  I'd file a bug at bugzilla.gnome.org in the "gdm"
category so this gets looked into.

Brian


> > > I'm currently testing GDM-2.24 as the XDMCP server and found one design
> > > defect for supporting multiple sessions concurrently.
> > >
> > > I noticed that each "gdm-simple-slave" starts a gnome-session for the
> > > greeter as "gdm" user.  I understand the benefit of using gnome-session
> > > for the greeter, but it will cause problems if there are multiple
> > > "gdm-simple-slave"s running.  
> > What specific problems are you finding?
>
> I have two "Display"s connected to the same XDMCP server. When I started
> "Universal Access Preferences" and launched programs like "on board
> screen keyboard" or "screen magnifier", they were also started on the
> other greeter display too.   Changing the language setting in one
> greeter screen also affected the other greeter screen too.  
>
> > > As every greeter sessions is started as the same user ("gdm"), any
> > > changes in one session will affect to the others. 
> > I do not believe that the user has any ability to change any session
> > configuration while the GDM login screen is running.  Are there any
> > specific configuration options that you are finding are causing problems
> > when using GDM in a multi-user environment?
>
> There is language chooser in the panel of greeter screen. When I changed
> it to other language, it affected other Display.
>
>
> > > Does anyone have more insight on this?  Has design been changed in
> > > 2.26 ?   
> > GDM has used gnome-session, gnome-settings-daemon, and metacity while
> > the login screen is running since GNOME 2.21.  GDM 2.21 was a complete
> > rewrite, and uses a completely new codebase.
> >
> > In GDM 2.20 and earlier, GDM used its own simple window manager and did
> > not use a real session manager or settings daemon.
>
> Thank you for this explanation.
>
> > Brian