Notebook Video, Display and Touch

This laptop was new in January 2020. A few weeks after initial set-up, I began having intermittent issues with the HDMI port not connecting to my proven good TV via my proven good cable. The 'proof' is that my 6 year old HP laptop is 100% reliable for connection to the same TV via the same cable.

Symptoms/The Issue: Image on laptop display does not appear on TV via HDMI.

Frequency of Issue: I attempt to connect via HDMI about once a day. The issue occurs about every other day. 

Detailed behavior during issue:  After I boot up the laptop and confirm the HDMI cable's physical connection, I turn on the TV and set its input to HDMI. The laptop display may or may not 'flash' (go to black-screen for a half-second) but the laptop display never appears on the TV. The TV screen remains black.

Trouble-shooting so far: I searched the community but found no close match to this issue.  I reviewed HP hardware diagnostic tools but found no HDMI specific diagnostic tool. I searched 'intermittent HDMI port' on the internet but found no close match to this issue. I did not swap out the TV or the HDMI cable because I had already proven the hardware with my old HP laptop as I mentioned earlier. I tried numerous reboots and restarts of both the laptop and the TV. Once the issue starts occurring, it seems the only thing I can do is wait a day and try again. 

Additional Detail: When the HDMI connection DOES work, it is 100% stable. There are no other issues with this laptop. I will consider the issue resolved when I can go for at least three days with multiple successful HDMI port connection attempts to the TV.

Questions: Is there an HP/Windows software toggle I can use to 'force' the HDMI port to connect? Is there a diagnostic tool specifically for the HDMI port switch? If this turns out to be a mother-board hardware issue, what are my options for repair?