(electron:2910): Gtk-WARNING **: 14:16:40.324: cannot open display: :0

sdetweil

MagicMirror is a web application.

it can be run in two different models

the browser and ‘web server’ are the same app, on the same machine
other machines can access the ‘web server’ part too
the mirror is run without a display (server only), and some browser somewhere is used to
access the ‘web server’

you might do 2 where u want to provide Mirror access to multiple systems but don’t need it where the pi is installed…

bachoo786

@sdetweil said in (electron:2910): Gtk-WARNING **: 14:16:40.324: cannot open display: :0:

the mirror is run without a display (server only), and some browser somewhere is used to
access the ‘web server’

you might do 2 where u want to provide Mirror access to multiple systems but don’t need it where the pi is installed…

ok makes sense. I normally access the mirror by port forwarding my raspberry pi on port 8080 and thats how I can access it on different machines or at work. And I like it that way to be fair. Because eventually my raspberry pi 4 will be inside the 2 way mirror running the Magic Mirror software.

sdetweil

@bachoo786 there is only one install…

but two ways to run…

but if u don’t have a display, then u are forced into serveronly mode

from the readme

https://github.com/MichMich/MagicMirror#server-only

from manual installation
https://github.com/MichMich/MagicMirror#manual-installation

Manual Installation
Download and install the latest Node.js version:
curl -sL https://deb.nodesource.com/setup_10.x | sudo -E bash -
sudo apt install -y nodejs
Clone the repository and check out the master branch: git clone https://github.com/MichMich/MagicMirror
Enter the repository: cd MagicMirror/
Install and run the app with: npm install && npm start
For Server Only use: npm install && node serveronly .   // < -------

sdetweil

@bachoo786 said in (electron:2910): Gtk-WARNING **: 14:16:40.324: cannot open display: :0:

Because eventually my raspberry pi 4 will be inside the 2 way mirror running the Magic Mirror software.

well, in that model, typically, u have both server and browser running on same machine (pi 4) inside the actual mirror enclosure on the wall), so NOT serveronly mode

see the forum section https://forum.magicmirror.builders/category/12/show-your-mirror
where people are showing their implementations, with the whole setup

bachoo786

@sdetweil ok so I will install like everyone else i.e. server and browser on the same machine. Thanks for sorting my head on that.

Now with regards to the install script I do not need to follow this link (https://github.com/MichMich/MagicMirror/wiki/Auto-Starting-MagicMirror) to autostart magicmirror? as you said thats all taken care in the install script? Am i correct? or?

sdetweil

@bachoo786 no… u have pm2 which does it all… (oops, the default run-start.sh script ONLY starts in both mode, YOU have to change it to do serveronly like below)

u have already installed both… again there is only ONE install process, but two ways to run

today

issue the following commands (either set)
run both

cd ~/MagicMirror
npm start

or
run serveronly

cd ~/MagicMirror
node serveronly

bachoo786

@sdetweil ok I will try it when I get home mate. Thanks.

bachoo786

@sdetweil hi quick question… so i connected my raspberry pi 4 4gb to hdmi o but there is no display ? do i need to do some settings? my raspberry pi doesnt display anything? is that normal for raspberry pi 4?

sdetweil

@bachoo786 i don’t know what you need to do to enable the display after booting into text mode…

maybe run raspiconfig. and select boot to desktop?

bachoo786

@sdetweil I had to add the following in my config.txt and it works now.

hdmi_force_hotplug=1
hdmi_ignore_edid=0xa5000080
hdmi_group=2
hdmi_mode=81

do you mind sharing your /boot/config.txt please?

Also after doing these settings the raspberry pi doesnt connect to wifi.

Its a disaster this rpi 4 tbh