How do I check for dead pixels on a new monitor?

Display full-screen solid colours and look for any dot that stays the wrong colour. Test within your return window.

Can a dead pixel be fixed?

True dead pixels usually cannot. Stuck pixels can sometimes be revived with flashing patterns.

How many dead pixels are normal?

It varies by manufacturer; many allow a few before accepting a return. Check your monitor maker's dead-pixel policy.

How to Check a New Monitor for Dead Pixels

Quick answer: To check a new monitor for dead pixels, display full-screen solid colours (red, green, blue, white, black) and look closely for any dot that stays the wrong colour. Do this within your return window, because most makers only accept dead-pixel returns in the first 14–30 days.

The fastest way: open the dead pixel test , go full screen, and cycle through the colours.

Dead vs stuck pixels

Dead pixel

Stays black on every colour because it receives no power. Usually permanent.

Stuck pixel

Stays fixed on one colour (often red, green or blue). Can sometimes be revived with rapidly flashing patterns.

How to test, step by step

Clean the screen first so dust is not mistaken for a pixel fault.
Open the test and go full screen.
Cycle red → green → blue → white → black → grey.
On each colour, scan the whole screen for any dot that is the wrong colour.
On the black screen, check the edges for lighter patches (backlight bleed).

Why timing matters

Manufacturers have a "dead pixel policy" that often allows only a certain number of faulty pixels before they accept a return, and only within a short window. Test a new monitor the day it arrives so you can return it if needed.

Run the dead pixel test now →