Magic mirror with 2 displays

[Ety60]

hello everyone, I am making a Magic Mirror with an rpi4 and 2 screens that I place on top of each other. When I run the Magic Mirror software, it only shows on 1 screen. Is there a possibility to do this on the 2 screens?

[sdetweil]

@Ety60 I haven’t been able to make it use both displays on startup… I can drag the image to fill both screens…

you can fiddle with the display options

var config = { 
     electronOptions : { ????? },
     modules : []
}

x and y describe the top left corner of the display
width and height describe the size and shape of the page

kiosk mode turns on fullscreen, no title bar, and some other things, not resizable I think… really a pain on mac)

the defintion of these options are here

https://www.electronjs.org/docs/api/browser-window

I use the electronOptions to have MM run on the second display on my desktop system

electronOptions: { x: 1920 },

so I tried

 electronOptions: { x: 0, width: 1920, height: 2160, minHeight: 2160, kiosk: false, fullscreen: false,  backgroundColor: "#00000001", autoHideMenuBar :true},

and it starts fullscreen on the 1st monitor (had to crop the screen shot to get it under 2 meg)

and

electronOptions: { x: 1920, width: 1920, height: 2160, minHeight: 2160, kiosk: false, fullscreen: false,  backgroundColor: "#00000001", autoHideMenuBar :true}, 

and it starts large, on the second monitor, but not quite full screen as the taskbar is not present on monitor 2.

neither the system , nor MM know about the physical placement of the displays

[sdetweil]

@Ety60 i have played with all kinds of scripts that ‘should’ work, but don’t… all oldish 2-3 years

[Ety60]

@sdetweil thanks for your quick and very complete answer. But do I understand that it is not possible to run the software on 2 screens? Could it be possible to run a separate magic mirror on each screen?

[sdetweil]

@Ety60 yes, rename one MagicMirror folder to MagicMirror2 and install a second instance, and in the config.js of one use the
electronOptions:{x:1920}
to display beyond the 1st display

[Ety60]

@sdetweil I addded electronOptions: {x: 1920} to my config file and I didn’t get an error but it still only shows up on the first screen. Am I doing something wrong?

[sdetweil]

@Ety60 like this, inside the config structure

var config={
   electronOptions:{ x: 1920 },
   ...
    modules :[],
}

[Ety60]

Thanks for the quick respons
Yes, exact like that.

[sdetweil]

hm, this is mine, cut and paste, opens on second display

var config = {
  electronOptions: { x: 1920}, 

are you using docker or MagicMirrorOS

[Ety60]

I found the error, because I put the 2 screens on top of each other, not x but y = 1920.
But I have found that the magicmirror2 folder is listening for the config file of the magicmirror folder. How can I adjust this?

[sdetweil]

@Ety60 how did u start each mm?

[Ety60]

I have done npm start on both

[sdetweil]

@Ety60 hm… then they should be looking at the config folder under each separate mm folder

u cannot start it twice from the same folder

[Ety60]

I used npm start to start both displays

[sdetweil]

@Ety60 from the separate mm installation folders, right

~/MagicMirror
and
~/MagicMirror2

assuming there is a coding error someplace, rename like this

~/MagicMirror1
and
~/MagicMirror2

then there is no, MagicMirror folder to use from

[Ety60]

I have done that but it still uses 1 config file. I have found that it always uses the config file of the MagicMirror that I run first.

[sdetweil]

@Ety60 makes no sense. u are doing

cd ~/MagicMirror1
npm start

in another window

cd ~/MagicMirror2
npm start

right

[Ety60]

thats correct!

[sdetweil]

@Ety60 can u show the two console outputs

[Ety60]

There is an error in the second console output. This one:

listen EADDRINUSE:  address already in use  128.0.0.1:8080