Toshiba Satellite HDMI port not working

My wife’s Laptop is a Toshiba Satellite C75D-C; Actual Model Number:C75D-C7224X
Its part number is PSCSWU-01K013 with a serial number of 8F099179S
We are running the latest M/S Windows 10 HOME build 1803 17134.1130. It was sold new as Windows 10 capable and likely came with MS 8.1 which was subsequently updated to Win 10.
Last known BIOS version is 5.0.
At this time, I have not found any later BIOS for the part number found above.
I have attempted also to find a newer Display Driver than Advanced Micro Devices 10/26/2017 version 23.20.768.12 and the Microsoft Generic Monitor Driver dated 6/21/2006 version 10.0.17134.1. The Monitor driver seems pretty old although the computer was purchased in 2005 so it appears to have at least one version update since it was purchased.
I could use some help in troubleshooting the HDMI port. The laptop worked fine with a Sanyo TV about a month ago but now fails any HDMI monitor on the port. I’ve even tried to restore back about 3 weeks prior but the port still doesn’t work.
This is an AMD Radeon R5 Graphics card: The Device Manager tool shows that the driver is functioning correctly (This device is working properly). Looking at the Events tab it appears that the driver was serviced 11/7/19 at 6:05 PM as a service was added (amdkmdap) with the following status: 0. Does zero (0) imply it failed or is working? Resources indicate there are no Conflicts (I assume that would be interrupt conflicts)?
We are awaiting Windows 10 version 1903 but it is apparently not yet tweaked for this laptop system yet.
Just to be sure, I’ve used the WIN + P to attempt to PROJECT by DUPLICATING the screen to the monitor attached to the HDMI port but that doesn’t work as well. I’ve also checked the MS Troubleshooter for Hardware and found no faults which points to this failure.
What other terms, names, services should I check as part of this strange failure before I declare the Hardware ‘FAILED’?

how about uninstalling the display drivers using DDU then re-installing the manufacturer's website driver and check ?
also check the bios , see if there are any options work on toggling that port on or off (not likely but if all fails just check)

Has anyone used one of these DONGLE devices to pass HDMI data through? Do they work? I'm trying to figure out an alternative to a FAILED HDMI port on my laptop. Just curious if anyone has any thoughts on how well they might perform?

I´d try a USB 3.0 to HDMI adapter. Some are inexpensive, less than $20.

USB 3.0 to HDMI VGA Adapter, ZAMO 1 in 2 USB 3.0 to HDMI VGA 1080p Dual Output Converter, 5 Gbps SuperSpeed USB 3.0 Converter Support HDMI VGA Sync Output for Windows 10/8/7 Only

Thanks for the tip on the Zamo 'dongle'. I just ordered one from Amazon Prime. Meanwhile, I'm still trying to get this HDMI port working trying different things. Right now I'm updating the Laptop to Win 1903 so we'll see if there's anything different there???

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nIGHTmAYOR, thanks for the tip on the DDU. I'm trying that next. Yesterday, I found the D/L of updated drivers extremely slow from their site. So meanwhile, Mr. Gates is installing Win 1903 before I can proceed to DDU.