boot time startup on Ubuntu 24.04 with Wayland, fails

[sdetweil]

What's going wrong?

when our app MagicMirror (uses Electron browser) starts at boot time, the electron runtime is confused,
looking for X11, but can't find display, etc..

but if we start from command line, it works.

How could we reproduce this issue?

install Ubuntu 24.04 desktop
install the MM app using my script

bash -c  "$(curl -sL https://raw.githubusercontent.com/sdetweil/MagicMirror_scripts/master/raspberry.sh)"

say yes to use pm2

(you can run the fixuppm2 script if you forget, or want to add it later )

bash -c "$(curl -sL https://raw.githubusercontent.com/sdetweil/MagicMirror_scripts/master/fixuppm2.sh)"

sudo reboot,
app should start (works ok on raspi OS 64 bit, on pi4 or 5 with wayland), but fails with error below (tested on AMD and ARM (macos))
forcing wayland doesn't help
setting wayland_display doesn't help..
see https://discourse.ubuntu.com/t/environment-variables-for-wayland-hackers/12750
the app never recovers altho wayland came up ok.

Supporting information

app reports

[2507:0513/142451.624701:ERROR:ozone_platform_x11.cc(244)] Missing X server or $DISPLAY
[2507:0513/142451.625045:ERROR:env.cc(257)] The platform failed to initialize.  Exiting.
Authorization required, but no authorization protocol specified

open terminal window
pm2 stop all
then pm2 start 0
and app comes up ok.

Run the following commands

$ pm2 report

[somefile.txt](https://github.com/Unitech/pm2/files/15299199/somefile.txt)

the pm2 error log
pm2error.log

[sdetweil]

reference diff between wayland and x11 autostart
https://forums.raspberrypi.com/viewtopic.php?t=314455
enclosed link to guides
https://github.com/thagrol/Guides