Two Display

[krocaq]

Re: Rpi 4 and two monitors

@saljoke
Hi. Thats right. i only use 1 Pi4 to serve both displays via 2 MM instances. first the originally MagicMirror directory and the second in a MagicMirror2 directory. Both powered up via PM2 and turned off and on via PIR sensor.

The config looks like this:

language: “de”,
logLevel: [“INFO”, “LOG”, “WARN”, “ERROR”],
timeFormat: 24,
units: “metric”,
electronOptions: {fullscreen:true, x:1920},

1920 is the resolution witdh of the main display.

Very easy to handle and good for the electrical consumption

[sdetweil]

@krocaq AND you can do it with ONE directory, by using the
environment variable
for one instance
MM_CONFIG_FILE=config/config.js
for the other
MM_CONFIG_FILE=config/config2.js
(each on a different port, same as what u have now)

and install all the modules in the modules folder for both,
only those used by an instance will be loaded

in each config you can also use different custom.css files…
so each instance can present a different view

[lexcyr]

@sdetweil Hello,
How to setup the environnent variable and custom css for that?
Do you have any tutorial/guide i can use?

[sdetweil]

@lexcyr in windows u set env var with

set varname=value

in Linux it’s

varname=value

but if you are starting another program from the script, you need to do

export varname=value

the css name is specified in the config.js

see the config instructions
https://docs.magicmirror.builders/configuration/introduction.html

[lexcyr]

@sdetweil Thanks for the info.
But i think i wasn’t clear enough with my question.
I was asking how to setup your MM, and use ONE directory and have different config for 2 display.
From what you said it can be made by using environment variable.

[sdetweil]

@lexcyr

create two config files

config.js
and
config2.js
this one has the left:1920 to move to the second display
has 3 instances of calendar

in the installers/mm.sh

# select the 1st config file
export MM_CONFIG_FILE=config/config.js
# detaches the process so we can continue
npm start &

#select the second config file
export MM_CONFIG_FILE=config/config2.js
npm start

in each config.js file you can point to different custom.css
using the customCSS: ??? path/name

each instance has to use a different port or course

[lexcyr]

@sdetweil Thanks a lot. It works well.
I have another question. is it possible to do the same, but only have one of the mirror config displaying on electron browser and the other one working as server to be displayed with any other browser from another device?
like this:

• 1st interface with config1 launch localy from electron browser with
  -2nd interface with config2 work as server mode and launch from another device browser

i’ve tried to just change the second section in the mm.sh file from “npm start” to “npm server”, but unfortunately it’s not working and everything just freezing.

PS: i am running MM on Linux Lite 6.0

[sdetweil]

@lexcyr

yes but its

npm run server

not npm server

only the start clause

npm start 

allows use without ‘run’

[lexcyr]

@sdetweil thanks a lot, it works.

[rubelahamed]

How to setup the environnent variable and custom css for that?
Do you have any tutorial/guide i can use?