Windows guides
How to Use Dynamic Refresh Rate in Windows 11
Dynamic Refresh Rate can lower refresh rate during lighter work and increase it when supported workloads need smoother motion, helping balance battery life and responsiveness.
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Troubleshooting
Mac External Monitor Not Detected, Black, or Stuck at the Wrong Resolution
Troubleshoot a blank Mac external display, limited resolution, low refresh rate, dock problems, closed-lid issues, and model-specific display limits.
Windows guides
Calibrate Your Display with Display Color Calibration in Windows 7 and 8 — Historical Guide
Historical Windows 7/8 guide to using Display Color Calibration for gamma, brightness, contrast, color balance, and ClearType.
Troubleshooting
Troubleshoot Flickering or Lines on a PC Display — Windows 8/7/Vista/XP Historical Guide
Historical troubleshooting for flickering, scrambled graphics, or lines across a PC display, separating driver/app faults from cables, monitors, GPUs, and laptop display hardware.