Re: initial thoughts on ltsp kiosk plugin

2007-05-17 Thread Simón Ruiz
On 5/17/07, Gavin McCullagh [EMAIL PROTECTED] wrote:
 A lot of window managers provide ways to directly run applications though,
 which is possibly not so desirable.  We also find students are great at
 obfuscating interface settings so as to book a machine, ie they change
 things so nobody else can figure out how to use it so we'd want it to be
 quite restrictive.

The way I dealt with that problem on a full desktop (and I think it
could be just as easy in a kiosk mode as you say is to reset the
default setting on reboot (though, you could also set the default
settings on, say gdm init or login by sticking the commands into
/etc/gdm/Init/Default or /etc/gdm/PreSession/Default (or the
equivalent on your DM, I'm coming from a default Ubuntu Desktop
perspective)).

http://indianalinux.blogspot.com/2007/02/refresh-default-settings-on-reboot.html

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-Simón A. Ruiz

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Re: initial thoughts on ltsp kiosk plugin

2007-05-17 Thread Gavin McCullagh
Hi,

On Thu, 17 May 2007, Simón Ruiz wrote:

 The way I dealt with that problem on a full desktop (and I think it
 could be just as easy in a kiosk mode as you say is to reset the
 default setting on reboot 

This happens already on ltsp diskless kiosks -- the kiosk home directory is
volatile.  Still, if an inexperienced user walks up and can't get a
reasonable interface straight away, they're likely to give up without
rebooting.  I'd rather they just can't mess with it.  No window manager
does this fairly well, it just limits firefox a little.

Gavin

Of course, some of the little $EXPLETIVEs have figured out that they can
mess with the monitor size/position settings to get the same effect.


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Re: initial thoughts on ltsp kiosk plugin

2007-05-16 Thread Jonathan Carter
Hi Gavin

Gavin McCullagh wrote:
 1. for some reason metacity didn't install.  I didn't get a log of the
ltsp-build-client, but for some reason, metacity didn't install and
therefore firefox is running window manager-less.  I presume this is
not deliberate as ~kiosk/.xsession tries to invoke metacity.

I *think* the bug is actually that .xsession calls metacity. From what I 
vaguely remember from an IRC discussion with ogra, Firefox is supposed 
to run windowless and full-screen. I may be wrong though, either way, 
there's a bug.

 2. I don't imagine this is something that will be changed but I added
sun-java5-plugin and flashplugin-nonfree in the chroot to make sites
that use these work better.

I think once Java is free, it will be nice to include it as an option 
for the build client script. Including GNU Gnash by default would also 
be great, imho.

 3. I tried out sound with a couple of flash sites.  It didn't work, though
it was clear that there was static on the headphones which was
correlated to the sound I should have been getting.  This may be flash
specific, I'm not sure.

Flash sucks. :)

 4. firefox didn't go into full screen.  This may be related to the lack of
window manager, I'm not sure.  If you press [F11] it did.

Hmmm.. perhaps it is supposed to use metacity after all. I just assumed 
it used the Firefox kiosk plugin to get to full-screen.

 6. RAM seems in reasonable supply (just lots being cached), but I'm not
certain if this is a good measure.
   $ free
total   used   free sharedbuffers 
 cached
   Mem:125224 118516   6708  0  0  
 53492
   -/+ buffers/cache:  65024  60200
   Swap:32760724  32036

Firefox LOVES RAM! And on top of that, it has some nasty unfixed memory 
leak bugs :(

What seems best for most people is to just restart Firefox at least once 
a day.

 6. I'm thinking of ways we could perhaps expand on this.  Perhaps: 
- a DVD player kiosk
- add a multimedia player plugin to the existing firefox kiosk
- make a simple application kiosk usable with data or even home
  directory stored on USB key.
As we have very little time to give accounts to all students, it's
possible this route might help give greater access to students.

All of those are great ideas. The USB home one is the most important in 
my opinion. IIRC, Scott Balneaves had some ideas for persistent homes 
with LTSP. Perhaps now is a good time to get that implemented.

-Jonathan

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