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Re: [LUG] computer for displaying information on a tv

 

On 05/12/10 12:51, Paul Sutton wrote:
i need to set up a old p2 computer to display information on a tv at the
rugby club, i am guessing there may be a few issues

1. how do you get round it needing a keyboard, as the bios will simply
complain there is no keyboard attached
You might be able to disable the keyboard check in the BIOS, sometimes 
it's listed as Halt on with the options All, Keyboard, None.  Set it to 
None and see what happens (if there is such an option).
Otherwise just plug a keyboard in.

2. what is the best way to do this

I did one for Palm FM although granted that was on slightly better 
hardware (Duron 1GHz I belive).  I did a basic install of Xubuntu (or on 
a P2 you might want to look at maybe Lubuntu or a base install of Debian 
with X and a lightweight window manager (FWVM2 or something), or maybe 
even Putty Linux or Vector Linux (the LXDE version is reasonably 
lightweight).
When I did it I installed Picasa and setup the slideshow screensaver (I 
had a real job getting this working on Gnome as the screensaver is an 
xscreensaver rather than a gnome-screensaver).  I think I did it in the 
end but if you run something other than Gnome and install xscreensaver 
you may be okay.
Or you could use Impress, depending on the window manager you may be 
able to set it to autostart (can't remember how to do it off the top of 
my head).
hardware wise i guess i just need to hook up to tv via a vga cable
i
again doing this as cheap as possible so it will probably be hacked
together,
Check the TV, if it's an LCD or Plasma TV then it will probably have a 
VGA connection, however not all of them do.  Our 32" Phillips LCD TV 
doesn't, it just has HDMI, however pretty much every other LCD TV I've 
seen does have VGA input.
Unless you want the PC near the TV then you'll need a long VGA cable. 
Try not to make it too long otherwise the quality will suffer. 
Alternatives if you can't put the PC anywhere near are KVM or VGA 
extenders which extend the VGA signal (and in the case of KVM, USB or 
PS2 signals depending on the model) over CAT5 up to around 100 Metres. 
They're not cheap though (last time I looked they were around £100 for a 
pair).
ideally also if it shuts down properly set up a cron job to switch off
automatically at night, or do things at a set time,
Yeah this shouldn't be a problem.  As you say run a cron job.  Then 
either get a staff member to turn it on in the morning, or maybe you 
could set the BIOS to turn the machine on at a specific time in the 
morning (I'm assuming it's an ATX motherboard and PSU).  The TV might be 
more of an issue, it may not power down when there isn't a signal.  You 
might be able to get away with a timer socket which is set to come on in 
the morning and go off at night (although again the TV might not turn 
itself back on without someone doing it, some do, some don't).
the main issue is the very low spec of the system being used, however it
runs xubuntu ok, but if i put in a different distribution that still
allows open office (unless the koffice presentation package) will do it.
or an alternative can be found.
Even with a a low spec distro you should be able to install the 
OpenOffice Impress package on it's own.
anyone got experience of this, needs to be pretty simple

See above :-)

oh perhaps also have openssh server on there so i can update it via a
wireless card i guess I can set it up so its a simple case of using ssh
or scp to upload new information from my netbook at the club

Shouldn't be a problem, although if they haven't got a wireless 
connection as it is you'd possibly have to setup an adhoc connection. 
I'd say bunging something on a USB stick and playing it off that might 
be easier, to update just remove the USB stick, update the file on it 
and then restart the presentation.
what i want to display

text
photos

Yeah Impress should be able to do that.

any ideas welcome, esp with regard to low spec distributions.
See above :-)

Rob

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