Amazon.com: Mini DisplayPort to HDMI Adapter for Lenovo ThinkPad X1 Carbon 2nd Generation MiniDP to HDMI Adapter Compatible with MacBook Air/Pro Microsoft Surface Pro/Dock Projector and More 2-Pack : Electronics
Is your ThinkPad's USB-C port not working? Upgrade its firmware. - CNET
External-video-issues-HDMI-not-working-through-HDMI-port-or-via-USB-C-Gen-6- X1-Carbon - English Community - LENOVO COMMUNITY