Q: What should I do if the hub/dock’s HDMI port is not working?

I understand that your HDMI port is not working and you are looking for troubleshooting tips. Here are some things you can try:

For laptops:

• Check if the connected USB-C port of your laptop supports DP Alt Mode (display output). You can check your laptop's user manual, contact the seller, or go visit the manufacturer's website. If DP Alt Mode is not supported, you cannot get an external display through a hub/dock.

• If you are using a Mac laptop, you can reset the PRAM to fix this issue. To do this, follow these steps:

。Power off your Mac.

。Press your Mac's power button and hold these four keys simultaneously: ⌘ + option + P + R.

。Continue holding the keys until your Mac restarts for the second time. On older Mac versions, the chime will sound upon restart.

• Update to the latest OS version if you use a MacBook.

• Try the device with a different laptop with a USB-C port and ensure it supports DP Alt Mode (display output) to get a display.

For HDMI cables:

• Verify that all devices are securely attached.

• Try the device with a different HDMI cable.

• If possible, plug your HDMI cable directly into your devices and see if you get a stable connection.

For monitors:

• Verify if the monitor is configured to the correct input.

• Try the device with a different monitor.

For hubs/docks:

• Confirm whether the LED light is on when connected to a laptop.

• Try with a different hub/dock to see if you can get a display.

If you have tried all of these troubleshooting tips and are still having problems, you may need to contact the manufacturer of your laptop, HDMI cable, monitor, or hub/dock for further assistance.