HDMI input not detected on Debian 10

I am running Debian 10 Buster on an an hybrid laptop with the following GPUs:

$ lspci | grep -E "VGA|3D"
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 630   (Mobile)
01:00.0 VGA compatible controller: NVIDIA Corporation GP106M [GeForce GTX 1060] (rev a1)

According to system settings > details the GPU in use is: Intel® UHD Graphics 630 (Coffeelake 3×8 GT2)

I have tried to open the Nvidia X server settings but nothing happens.

I previously used Mint and Ubuntu and had no problems the HDMI was detected automatically.

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Author: JudeB