What's wrong with my screen?
Lines, spots, flicker, shadows or a black screen? Find out what it is, whether you can fix it yourself, and if a repair is worth paying for.
Free, nothing to download. Works on laptops, monitors, Chromebooks and MacBooks.
Most common problems
- White spot on screen
A white or bright spot on your laptop or monitor screen can be dirt, a stuck pixel, pressure damage or the backlight. Find out which, and whether it's worth fixing.
- Why is there a line on my computer screen
A line across your computer screen can come from the graphics driver, the cable or the screen itself. A two-minute test tells you which, and what it'll take to fix.
- Monitor shadow problem
Shadows on your monitor can mean three different things. Work out which one you have, then fix it: settings, cable, or the screen itself.
- Chromebook screen flickering
Chromebook screen flickering or flashing? Update ChromeOS, hard reset the hardware, and test an external screen to find out whether it's software or a repair.
- Monitor flickering
Stop monitor flicker: test whether it's the driver, an app, the cable or the monitor itself, with fixes from Microsoft and Dell.
- Horizontal lines on laptop screen
Horizontal lines across your laptop screen? Find out in two minutes whether it's the driver or the screen itself, and what to do next.
- Pressure marks on laptop screen
Light blotches or keyboard-shaped marks on your laptop screen? Find out whether it's pressure damage or marks on the coating, and how to stop it happening.
- Pink screen laptop
Laptop or monitor screen turned pink or purple? Check settings, drivers and the cable, then test whether the screen itself is failing.
How we check our answers
Every fix on this site links to the manufacturer support page or repair guide it comes from, and each page shows when it was last checked. More about us