So it does support DP Alt mode? That just says it provides DisplayPort output. I'm told that it does not necessarily mean it supports DP Alt mode. I have an HP USB-C travel hub G2 and when I plug it into the laptop's USB-C port and a monitor into the HDMI port on the hub I don't get a signal at the monitor.
Thank you for posting your query, I will be glad to help you. I understand you are facing an issue with your HP 14-dq0000 Laptop PC supports DisplayPort Alternate Mode (DP Alt Mode) via the USB-C port, you can follow these steps: Check Specifications: Refer to the laptop's official specifications on the HP website or the user manual.
If your laptop has a Mini DisplayPort or HDMI 2.1, those might be directly wired to the dGPU. Unfortunately, if your laptop only has HDMI 2.0, using DP Alt Mode on USB-C may be your only option for higher refresh rates. Check if the BIOS Has a GPU Switching Option Some laptops allow users to force the dGPU for all external monitors in the BIOS.
Dodatkowe informacje na temat połączeń DisplayPort przez USB Type-C (zwanych również USB-C) i ich zalet. Dowiedz się, jak sprawdzić, czy port USB Type-C komputera obsługuje technologię DisplayPort.
The USB-C port must support DisplayPort Alt Mode (DP Alt Mode), or a Thunderbolt port must be used. If the USB-C port only supports data or power delivery, no video is seen.