The ScreenTest.run Blog
Insights, guides, and updates on display technology, performance testing, and gaming.
144hz-monitor-stuck-at-60hz-windows-11→
A deep-dive technical audit on why your 144Hz monitor is stuck at 60Hz. We analyze bandwidth, EDID, and OS-level policies to provide engineering-grade fixes.
macbook-external-monitor-stuck-at-60hz→
A technical guide to fixing MacBooks (M1, M2, M3) stuck at 60Hz on high refresh rate monitors. Learn about DisplayPort Alt Mode, WindowServer limits, and how to force 120Hz/144Hz.
144hz-vs-60hz-gaming→
A deep dive into the technical reasons for high refresh rates in competitive gaming, analyzing frame pacing, motion blur, and system latency. Learn why 144Hz is a necessity.
browser-hardware-acceleration-refresh-rate→
Learn how browser hardware acceleration affects your monitor's refresh rate. Follow our guide to fix low Hz and stuttering in Chrome/Edge by optimizing GPU settings.
new-monitor-dead-pixel-test→
A technical guide on how to properly inspect a new monitor for dead pixels, stuck pixels, backlight bleed, and other defects within the return window.
dead-pixel-vs-dust→
Learn professional methods to distinguish between a dead pixel and internal dust on your monitor. Use parallax tests and macro analysis to prove a manufacturing defect.
dead-pixel-policy→
Understand ISO 9241-307 and your consumer rights. Learn how to argue for a monitor return or refund even for a single dead pixel with our guide.
can-dead-pixels-be-fixed→
Learn the difference between stuck and dead pixels. We analyze why pixel repair software works (sometimes) and why manual methods are dangerous. Professional diagnostic checklist included.
ips-glow-vs-backlight-bleed→
Learn the critical difference between acceptable IPS Glow and defective Backlight Bleed. Our guide helps you diagnose your panel and win your RMA claim.
backlight-bleed-test→
Learn the professional protocol for testing backlight bleed. Avoid common mistakes like 'Night Mode' photos and use our guide to get valid, RMA-worthy evidence.
oled-vs-lcd-black-levels→
An engineering deep-dive into why OLED's 'true black' outperforms LCD, even Mini-LED. Learn about backlight bleed, infinite contrast, and how to test your monitor's black level performance.
monitor-black-looks-grey→
An engineering breakdown of why LCD monitors (especially IPS) show a grey glow instead of true black, and a professional checklist to improve your contrast.
monitor-color-tint-calibration→
Learn why your monitor has a color tint (yellow, green) and how to fix it using Windows' built-in calibration tool (dccw.exe). Understand Delta E, Gamma, and LUTs.
srgb-vs-dci-p3-monitor-colors→
Discover why the reds on your wide-gamut monitor look dull or desaturated. Learn about sRGB, DCI-P3, color space clamping, and how to diagnose the issue.
monitor-uniformity-issues→
Discover the root causes of 'Yin-Yang' color temperature shifts on IPS monitors. Learn how to quantify chromatic non-uniformity and perform an exact 9-point audit.
phone-screen-brightness-light-interference→
Learn why True Tone, adaptive brightness, and ambient light reflections ruin screen tests. Follow our hardened protocol for accurate color and uniformity results.
hdmi-vs-displayport-144hz→
A deep-dive into why bundled monitor cables cause black screens, flickering, and limit performance. Understand the physics of bandwidth and how to diagnose a bad cable.
usb-c-144hz-monitor→
A technical deep-dive into why your USB-C monitor might be stuck at 60Hz. Understand DP Alt Mode, 2-lane vs 4-lane configurations, and bandwidth trade-offs.
used-monitor-test→
A professional guide for buying used monitors in 2026. Learn to identify hidden defects like burn-in, backlight bleed, and frame skipping using online diagnostic tools.
60hz-vs-144hz-vs-240hz-vs-360hz→
A technical audit of monitor refresh rates. Discover why 360Hz can be a marketing placebo and how factors like response time and motion clarity are more critical.