Re: How to persist text on the screen when the client exits?

You need to re-imagine your client rather than the change the server.  Your client is spawning 4 processes every 2 seconds. This doesn't seem like a good idea.

As a temporary fix, the -t option  for lcdproc_client.py will keep the connection open for the time you specify.  I would change your final sleep command to account for this. 

--Eric

On Jan 1, 2013, at 3:27 PM, Richard Neill wrote:

> Dear All,
> 
> I've just joined this list, so please excuse me if I ask an obvious question.
> 
> I'm trying to get a server status monitor system working, monitoring a set of parameters of my choice (the lcdproc defaults aren't suitable for me here)
> 
> So, I have LCDd running   (with a 20x2 picolcd), and found the text client here:  http://lcdproc-client.sourceforge.net/
> 
> I have a bash-script that sends strings to the client every few seconds, and they display on the LCD as expected. A simplified example:
> 
> while : ; do
>  hostname | lcdproc_client.py -f -
>  sleep 1
>  date  | lcdproc_client.py -f -
>  sleep 1
> done
> 
> 
> This displays the hostname and the date, alternately, as I expect.
> 
> BUT, between these, every time the python script exits, the system keeps going back to either the LCDd default screen, or to blank  (the value of ServerScreen).
> 
> How can I get LCDd to just leave the text on screen as it was, until I explicitly overwrite it?
> 
> Thanks very much,
> 
> Richard
> 
> 
> P.S. Might I suggest that a "--text" option to lcdproc i.e. "write this line to screen, and exit" would be really useful in the default distribution.
> 
> 
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