I'm using a touchscreen in vertical position as a monitor and I need to run a script at startup, otherwise Ubuntu does not flip the touch interface to fit the vertical position of the monitor and the touchscreen is unusable as a result. As the idea is not to need either a mouse or a keyboard, I need to be able to run the script automatically at startup without any user interaction.
I tried all the ways I could find through Google to do it but none worked, probably because some of them referred to older Ubuntu versions. The last one I tried was this one:
https://linuxconfig.org/how-to-run-script-on-startup-on-ubuntu-20-04-focal-fossa-server-desktop
which looked promising. I did exactly what was shown, replacing the script with my script, but nothing happens at startup and I still have to run the .sh file from terminal manually to get proper touch screen calibration after startup.
Only the result matters, the method can be ugly, but I desperately need a way to make it work. I never thought it would be so complex and would require so much work to run a script at startup, and I'm way past my level of competence here.
