Problems using .pitile file

[James Clark]

This is doing my head in I dare say what I am asking is probably the proverbial stupid question. 

My wall uses 4 x 50 inch Panasonic TV’s and I have a dedicated 24 port Netgear switch to run everything. 

My Master Pi uses 192.168.0.100 and the four dedicated RPi’s use 101, 102, 103 and 104.

The master is a Raspberry Pi which I run headless using Putty. and I access the dedicated control RPi’s using Putty as well.

This 2 x 2 wall works perfectly when I use the standard tile codes 41, 42, 43 & 44. 

My problems arise when I start trying to use the .piwall and .pitile files 

The .piwall file I am using is the standard one provided here

http://www.piwall.co.uk/information/configuration-file

I am trying to fire this up on my first screen with the following command. 

pwomxplayer --config=4bez_wall udp://239.0.1.23:1234?buffer_size=1200000B

I have set up permissions 755 for both .piwall and .pitile files (I can experiment with this later). 

I am putting both .piwall and .pitile in the /home/pi/ directory

The pwomxplayer command is calling correctly as I had issues with a spurious character that produced an error message that cleared when I removed the errant keystroke. 

But now I get the following message

pwomxplayer:No[title] selection in ~/.pitile

The instructions state that .pitile should look like the following.

[tile]

id=???

Where ??? is the chosen tile name.

Now given that I am using the .piwall as standard and given on the website what should my .pitile file look like for my first top left screen.

I have tried various combinations using 4bez_1, 4bez_wall, and pi1 for both id and tile

I am certain this is just me being obtuse in my reading of the configuration support documentation.     

[Zsolt Ban]

How does your .piwall look like?

This is caused because in the .piwalls last part your id is not found in here:

# config

[4bez]

pi1=4bez_1
pi2=4bez_2
pi3=4bez_3
pi4=4bez_4

Here is a small example for your setup:

.piwall (same on all the players):

# wall definition for 2x2 screens with bezel compensation

[4bez_custom]
width=7680
height=4320
x=0
y=0

# corresponding tile definitions
[4bez_1]
wall=4bez_custom
width=1920
height=1080
x=0
y=0

[4bez_2]
wall=4bez_custom
width=1920
height=1080
x=1920
y=0

[4bez_3]
wall=4bez_custom
width=1920
height=1080
x=1080
y=0

[4bez_4]
wall=4bez_custom
width=1920
height=1080
x=1080
y=1920

# config
[4bez]
pi1=4bez_1
pi2=4bez_2
pi3=4bez_3
pi4=4bez_4

Now name each of your players in .pitile accordingly to what you want them to show:

Top left:

[tile]
id=pi1

Top right:

[tile]
id=pi2

Bottom left:

[tile]
id=pi3

Bottom right:

[tile]
id=pi1

[Zsolt Ban]

Here is a little graph how is the piwall and pitile working. It took me some try and error till I figured out:

[James Clark]

Thankyou.  

I now realise what I was not understanding.  

Where I was changing [tile] in the .pitile file to so that it to reflected what I was trying to do.  

Where I should have been leaving it as [tile] wher tile was the label that pwomxplayer was looking for.  Doh!

I just knew it had to be something I was missing due to my own stupidity.

Again I thank you for your clarity also your diagram was also most useful.  

[James Clark]

Link to a short video of my wall 

This is the wall before I started tinkering with the configuration settings.  I have had to dismantle the wall temporarily the roof is leaking where I am doing my testing.  

As the wall is designed to be portable it erects and can be dismantled in about 15 minutes so this is no big deal.   

I was still having problems till I realised that I needed to change the pwomxplayer command to include the label in the config section of .piwall

So my new command line is as follows

pwomxplayer--config=4bez udp://239.0.1.23:1234?buffer_size=1200000B

Your diagram could be improved by showing where the config value in the command ( in this case 4bez ) points to the label in the config section of the .piwall file

I have to repeat though I was totally stuck until I received you help