What you’re likely seeing is a brownout caused by puling too much power, power noise from other things on the same line as the laser, or improper grounding.
Go through this list as a starting point: How to troubleshoot connection issues with USB
What you’re likely seeing is a brownout caused by puling too much power, power noise from other things on the same line as the laser, or improper grounding.
Go through this list as a starting point: How to troubleshoot connection issues with USB