Is your monitor showing “No Signal” when connected to your laptop? In this quick Windows & Mac fix tutorial, I’ll show you how to troubleshoot your external display in seconds. You’ll learn how to: ✔ Check HDMI/DisplayPort/USB-C cable ✔ Select correct monitor input ✔ Use Windows + P to detect display ✔ Fix USB-C adapters ✔ Reset graphics driver ✔ Adjust resolution ✔ Restart laptop & monitor ✔ Test ports and cables Perfect for Windows 10/11, MacBook, USB-C monitors, HDMI monitors, and docking stations. 📌 Need help? Comment your laptop/monitor model!