Display & Device Diagnostics Blog
Expert guides, practical tips and in-depth explanations to help you test, understand and get better performance from your screens and devices.
Featured Articles
GuideComplete Monitor Testing Checklist: Screen, Motion, Color & Inputs
A practical step-by-step monitor testing checklist for dead pixels, uniformity, gradients, motion blur, sharpness, resolution and connected inputs.
Display qualityMotion Blur vs Ghosting: What’s the Difference?
Understand motion blur, ghosting, inverse ghosting and pixel response behavior, then learn how to test them correctly in your browser.
CalibrationHow to Calibrate Your Monitor for More Accurate Colors
A practical monitor calibration guide covering brightness, contrast, white point, color modes, ambient light and browser-based checks.
Latest Articles
View all articles →
Screen testsDead Pixels: Types, Causes and What You Can Do
Learn the difference between dead, stuck and hot pixels, what causes them, how to test safely and when repair or warranty service makes sense.
TroubleshootingNo Signal on Monitor? A Complete Troubleshooting Guide
Work through the most useful checks for a monitor showing No Signal, from cable and input selection to graphics output and display detection.
Display quality60Hz vs 144Hz vs 240Hz: Which Refresh Rate Is Best?
Compare 60Hz, 120Hz, 144Hz, 165Hz and 240Hz displays and understand how refresh rate affects motion clarity, responsiveness and everyday use.
CalibrationsRGB vs Adobe RGB vs DCI-P3: Color Gamuts Explained Simply
Understand sRGB, Adobe RGB and DCI-P3, where each gamut matters and why a wider gamut does not automatically mean more accurate color.
More established guides
Useful articles from the original DeadPixelTest library, refreshed and connected to the current diagnostic tools.