Re: [gdm-list] gdm-list Digest, Vol 97, Issue 2

["John D. Hendrickson and Sara Darnell" <johnandsara2 cox net>]

that wouldn't help blind people using audio to log-in :)

what about security ?  (i omit details of su(1) v. login(1) and gdm)

why not log in at the log-in , and then use applications (scribble) ? 
 nothing says you can't have allow anonymous log-in, if you have 
that.  isn't that allot simpler and not a problem to need solving ?

Thanks -- John


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> Today's Topics:
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>    1. Re:  Want blank screen to scribble on (Ray Strode)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 10 Aug 2013 08:15:12 -0400
> From: Ray Strode <halfline gmail com>
> To: "Paul D. DeRocco" <pderocco ix netcom com>
> Cc: GDM List <gdm-list gnome org>
> Subject: Re: [gdm-list] Want blank screen to scribble on
> Message-ID:
>         <CAA_UwzJAuqx4RwNKBCPUqWirdxHNN4GDYuOzg=fs6ac__nM6mQ mail gmail com>
> Content-Type: text/plain; charset="utf-8"
>
> 1) as root run
>
> $ mkdir /etc/X11/sessions
> Inside that directory put a file named kiosk.desktop with these contents:
>
> [Desktop Entry]
> Name=Kiosk Program
> Exec=kiosk-program
> TryExec=kiosk-program
> (where kiosk-program is the one program you want to run)
>
> 2) then run
> $ useradd kioskuser
> $ passwd kioskuser (and give it a password)
>
> 3) at the login screen, click the kioskuser from the userlist.
>
> Before typing the password click on the "Kiosk Program" session from the
> session list
>
> 4) type the password and login
> 5) once the kiosk program is started, kill the X server to logout
> 6) in the [daemon] section of the gdm config file put:
>
> AutomaticLoginEnable=true
> AutomaticLogin=kioskuser
>
> 7) reboot and confirm the kiosk program is started automatically at boot up.
>
> Once that's working, if you want to automate this can skip the interactive
> login step 3, by writing out the /var/lib/AccountsService/users/kioskuser
> file yourself.
>
> --Ray
>
>
>
> On Fri, Aug 9, 2013 at 4:11 PM, Paul D. DeRocco <pderocco ix netcom com>wrote:
>
> > I'm doing an embedded project using a Gumstix (Yocto build). Currently, I'm
> > using the XFCE desktop, but what I really want is no desktop at all, just a
> > blank screen that GTK or PyGTK apps launched from a command line or a
> > startup script can have complete control over. Currently, they display on
> > top of the logon screen, but I'd like to strip out as much as possible.
> >
> > Is this something that's easy to do, without becoming an expert on GDM? If
> > I
> > stop GDM, then the graphic screen shuts down entirely, and there's nothing
> > for my apps to draw on at all. Is the proper approach to create a "null
> > greeter" that doesn't do anything? (I naively tried setting
> > "greeter=/bin/true" in the [daemon] section of gdm.conf, but that didn't do
> > anything.) Or is there an easy way to get the graphical screen started up
> > without the rest of GDM?
> >
> > This sounds like it should be easy, for someone who knows how it all works.
> >
> > --
> >
> > Ciao,               Paul D. DeRocco
> > Paul                mailto:pderocco ix netcom com
> >
> >
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