Lenovo · ThinkPad X13 Gen 4 AMD · Windows 11
HDMI Not Working Fix
The ThinkPad X13 Gen 4 AMD has no built-in HDMI port. External displays connect via USB-C adapters or a Thunderbolt 4 dock. When the external monitor is not detected, the AMD Radeon 780M driver or the USB-C Alt Mode controller is the most common cause.
Fix 1 — Use the Correct USB-C Port
Connect your USB-C to HDMI adapter to the left-side USB-C port (Thunderbolt 4). Press Win + P and select Extend or Duplicate. If the monitor shows “No Signal,” the adapter may not support the display resolution — try a different adapter rated for your monitor resolution.
Fix 2 — Update AMD Radeon 780M Driver
Download the AMD Radeon driver from Lenovo Support for ThinkPad X13 Gen 4 AMD. Installing the latest AMD graphics driver updates the DisplayPort Alt Mode firmware and often resolves HDMI output failures over USB-C adapters.
Fix 3 — Try a Powered USB-C Hub or Thunderbolt Dock
Passive USB-C to HDMI adapters sometimes fail at high resolutions. Use a powered USB-C hub with dedicated HDMI output or a certified Lenovo Thunderbolt 4 dock for reliable 4K video output from the ThinkPad X13 Gen 4.
“Updating the AMD Radeon driver from Lenovo Support and using the left USB-C port with a quality adapter fixed my HDMI output on the ThinkPad X13 Gen 4.” — Wan Azri, Kuala Lumpur
Ryan holds a Computer Science degree and has spent over 15 years troubleshooting Windows hardware and driver issues across major laptop brands. He writes practical, step-by-step guides for everyday users at softwaredriverdownload.com.
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