What should be the first step when troubleshooting a display issue?

When troubleshooting a display issue, the first step should involve checking the display settings and external connections. This initial action targets common and easily rectifiable problems that cause display issues. By ensuring that cables are securely connected, the power supply is functioning, and the correct input source is selected, many display problems can be resolved without requiring extensive measures.

This approach is fundamental because display issues often stem from simple user errors, such as a loose cable or incorrect settings rather than hardware failures. Only if these basic checks do not resolve the issue would it be appropriate to consider more complex solutions, like updating drivers or replacing hardware components. By starting with the simplest potential fixes, technicians can quickly determine whether the problem is something easily addressed or if further investigation may be required.