What to look for
- Check black, white, red, green, blue, and mid-gray at comfortable brightness.
- Inspect normal content too; a problem that is obvious on solid test colors may be hard to notice during normal use.
- Confirm suspect points with the monitor’s built-in test.
- Keep photos, receipt, serial or model number, dot count, and location together.
Use this order
- Inspect for physical damage before setup.
- Run the guided pixel check.
- View gray for obvious patches or edge bleed at normal brightness.
- Test each intended input and refresh rate.
- Record the decision while the retailer return path is still simple.
Common questions
Should I keep a monitor with one imperfect pixel?
That depends on visibility, location, price, replacement risk, and your tolerance. The cleanest leverage is usually the retailer return window, not a manufacturer threshold.