Raspberry pi 5 password

I use Raspery on Pi5, there are no problems, it starts automatically without a password when the first power comes on. While the CNC is running and processing materials, a password login screen appears occasionally, but the CNC does not stop and continues to work. What causes this encrypted login screen to appear?

Are you using the supplied LinuxCNC RPi image? If so it sounds like we might need to fix something in the setup. A CNC machine shouldn't screen-blank.

There is a whole thread about screen blanking here: forums.raspberrypi.com/viewtopic.php?p=433728#p433728

(Basically there are several things that can blank the screen)

If it locks the system, requiring a password, then it won't be the always-tricksy "dpms"

I am using the image shared by rodw. The problem does not persist now, I have solved it. If you want, I can share pictures of how I did it tomorrow.