Guides
Plain-English guides to working out what's wrong with your screen, and fixing it when you can.
Dead Pixel vs. Stuck Pixel vs. Hot Pixel
How to tell them apart at a glance, and what each one means for your screen.
Can Dead Pixels Be Fixed?
What causes them, and your real chances of fixing one.
How to Check a Used Laptop or Monitor Screen Before You Buy
A ten-minute check for the faults sellers don't mention, before you hand over the money.
How to Safely Clean Your Screen
The easy mistakes that damage screens, and what to use instead.
Manufacturer Dead Pixel Policies Compared
How many faulty pixels each brand allows before it replaces your screen, in one table.
Screen Burn-in vs. Image Retention
Whether that ghost image is there for good, or will fade on its own.
Backlight Bleed vs. IPS Glow
Why black is never quite black, and how to tell when it's a fault.
Grayscale Banding and Panel Uniformity
Why gradients look stepped and gray looks blotchy, and what causes it.
Want to check your speakers or headphones too? The Sound Test guides cover speakers, headphones, and microphones.