id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc	mlocked
324	Patch to move LCD control to new mythlcdserver	Paul	Isaac Richards	"This patch fixes a couple of problems with the current
implementation of the LCD output.

1. If you have more than one program that creates an LCD object
to update the LCD they each create a new set of screens and widgets
which causes the LCD to display strange sequences of screens. The LCDd
server isn't smart enough to recognise the screens were created using the same
client name and screen names etc.

2. If you start another process from the frontend like using an external player in
MythVideo or MythDVD or start MythBrowser for example it causes the LCD
display to freeze until control is passed back to the frontend.

This patch fixes both problems by moving the control of the LCD to a
separate process 'mythlcdserver'. Clients talk to the server though a socket.
The public interface to the LCD class is the same so no need to change
any of the plugins or mythtv to use it. The LCD class will start the mythlcdserver
if necessary.

There is another advantage to using a separate process to look after the LCD, it doesn't require the frontend or even the backend to be running for it to work so
can be started early in the boot process if you want. There is even a parameter you
can pass to the mythlcdserver that will display a start-up message for a set time or until a client is connected. Better than displaying the user unfriendly LCDproc
server screen I think.

There is two things I can't test - the set LED's stuff and the key press support. 
My LCD doesn't support either of them so if someone could test and report back.

Should also fix #280 & #317.

Paul  
"	enhancement	closed	minor	0.19	mythtv	head	medium	fixed	lcd		0