The problem

My motherboard’s HDMI port isn’t working

Research and work so far

Internet says integrated GPU is disabled by default when a discrete GPU is connected.

I did enabled the integrated graphics on the BIOS settings.

Internet says sometimes the monitor’s drivers take a time to kick in.

I left the pc run long enough time.

Internet says running Windows Update may force the dirvers to install.

Have runned Windows Update until no avaliable updates are avaliable. Nothing changed.

So, I explicitly installed the lastest VGA Intel controller in my motherboard’s website.
Once installed it tries to run the monitor attached to the GPU.
My system doesn’t detect a new monitor has been connected. The port should be enabled now.
I did restarded many times so changes kick in. No changes. Any ideas?

System

• OS: Win10 ver.2004
• motherboard: MSI z490 gaming carbon wifi
• CPU: Intel i7-10700K
• GPU: Nvidia 2070 RTX Super

I assume the rest of componnets are meaningless to this problem. But can provide the info if needed.
All drivers should be up to date, but system in brand new (less than a week old)

PD

There’s one HDMI cable connecting from the a GPU’s HDMI port to my main monitor, and there’s another cable connecting the motherboard’s HDMI port to me secondary monitor.

EDIT

After @SamForbis’s suggestions I’ll add more info about.

• The Devices Manager, under the Display Adapters section shows both Intel’s and Nvidia Drivers screenshot.
  This happend after the Intel’s drivers installation, before it only showed the Nvidia ones.
• Although under Monitors, it only shows one screenshot
• I have tried to connect the secondary monitor in the GPU’s port, and it works, and connected the main monitor into the on-boad port and doesn’t work.
• At the momment I don’t have any DisplayPort cable of any kind, so I can’t test the DP port in the motherboard.