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

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