Display Testing Guides by ScreenTest.run

144Hz Monitor Stuck at 60Hz on Windows 11?→

Check cables, ports, Windows settings, GPU control panels, drivers, and browser rendering before blaming the monitor.

A plain-English upgrade guide covering 60Hz, 144Hz, 240Hz, and when higher refresh rates stop mattering.

Set up the room, brightness, camera, and viewing angle so you can separate real bleed from photo artifacts and IPS glow.

A troubleshooting guide for Chrome, Edge, and browser tests that feel stuck at 60Hz or stutter on a high-refresh monitor.

Separate dead pixels from stuck pixels, try safe software checks, and know when to stop before damaging the screen.

Use solid colors, angle changes, focus, and photos to separate pixel defects from dust or panel marks.

Choose the right cable and port for 1080p, 1440p, 4K, HDR, and high refresh rates without guessing.

Use viewing angle, brightness, and fixed-position checks to tell normal IPS glow from possible backlight bleed.

Check USB-C, Thunderbolt, docks, cables, macOS display settings, and browser rendering before blaming the display.

Understand black level, contrast ratio, brightness, IPS glow, bleed, and uneven backlight before changing settings.

Check lighting, color mode, white point, Windows calibration, ICC profiles, and wide-gamut settings before changing every slider.

A practical first-day inspection for dead pixels, stuck pixels, dust, bleed, uniformity, and refresh-rate issues.

Compare OLED, LCD, local dimming, blooming, near-black detail, brightness, and practical trade-offs.

Understand DP Alt Mode, Thunderbolt, 2-lane and 4-lane modes, docks, hubs, and cable limits before buying adapters.

Inspect a second-hand display for pixels, burn-in, bleed, brightness loss, repair signs, ports, and refresh-rate problems.