@sdetweil
I did try adding the command to the first line of the mm.sh script in the installers folder but that didn’t work. Here’s the sequence I run after rebooting, after which I have no issues.

pm2 stop 0
xhost +si:localuser:[username]
pm2 start 0

Here’s the output from those other two commands:

lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 24.04 LTS
Release:        24.04
Codename:       noble

uname -a
Linux [computername] 6.8.0-31-generic #31-Ubuntu SMP PREEMPT_DYNAMIC Sat Apr 20 00:40:06 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux

In case anyone else has this issue, I was able to able to get it to run via pm2 by running this command first:

xhost +si:localuser:[username]

Next steps are to figure out how to automatically run that command at startup prior to MM.

@sdetweil
was logged in as a user, not root. got the same errors after running the fixuppm2 script and rebooting. here are the results from the other command. looks like it does use wayland:

aj          2524    2226  0 16:06 tty2     00:00:00 /usr/libexec/gdm-wayland-session env GNOME_SHELL_SESSION_MODE=ubuntu /usr/bin/gnome-session --session=ubuntu
aj          2938    2674  0 16:06 ?        00:00:03 /usr/bin/Xwayland :0 -rootless -noreset -accessx -core -auth /run/user/1000/.mutter-Xwaylandauth.QXB9M2 -listenfd 4 -listenfd 5 -displayfd 6 -initfd 7 -byteswappedclients
aj        393102  390657  0 19:44 pts/0    00:00:00 grep --color=auto -i way

I installed MM via sdetweil’s script on Ubuntu 24.04. Everything seems to work fine after installation, but after a reboot MM doesn’t start up. Checking the pm2 logs shows these errors, and then it just keeps looping.

[35781:0511/163537.061675:ERROR:ozone_platform_x11.cc(244)] Missing X server or $DISPLAY
[35781:0511/163537.061869:ERROR:env.cc(257)] The platform failed to initialize.  Exiting.
Authorization required, but no authorization protocol specified

I can run MM successfully using

npm start

from the MagicMirror folder. Any ideas on how I can get it to run at startup?