Blank/No signal on Geforce 1030 HDMI (Ubuntu/Mint) with latest drivers

As per the topic, I cannot get a signal out of my Geforce 1030 card to my TV once Ubuntu/Mint desktop should display. I can only get video from my onboard HDMI.

I have tried 435, 430, 390 with no luck.

I have tried different BIOS combinations to enable/disable the onboard/PCIe card.

Nothing works - have spent literally days on this and just about every suggestion out there.

Log attached - any suggestions desperately appreciated!
nvidia-bug-report.log.gz (1.06 MB)

You’re geting some really strange crashes, please try upgrading your HWE stack first:
If that doesn’t help, does it work if you disable the onboard gpu in bios?