Hi Kenneth. I logged into Creative Cow today, read your question, and empathize. I don’t have a clear answer, but I have a few ideas.
The fact that you are seeing the video artifacts in both source and timeline viewers suggests a hardware problem—to me, anyway.
The first flag for me is that you are attempting to view UHD (3840 x 2160) video, but your monitor is set to 2560 x 1440. You have a mismatch between what you’re attempting to play, and what your monitor is capable of delivering. My guess is, this might be what’s causing the bad video in Resolve—particularly because both the source and timeline viewers are scaled down (e.g. not full-screen).
Your graphics card and monitors appear to be capable of supporting UHD. So, why is Windows recommending 2560 x 1440? Something’s amiss.
Go into Windows settings and see if you can set the resolution to the higher 3840 x 2160. If Windows doesn’t give you an option higher than 2560 x 1440, Windows thinks you don’t have a UHD monitor attached. The question is why. If you can’t figure it out, call MSFT tech support to ask them.
Before you do that:
> Check to ensure your video cables are up to spec.
> Open the GeForce Experience software to update the RTX 2070 driver to current version.
> Update DR to the most current release version (mine is 17.4.6 build 4).
> Update Windows to the most current version. Are you using Win 10 or Win 11? If Windows 10, then upgrade to Windows 11. If Windows indicates that your PC isn’t capable of the upgrade, that may be another clue that your motherboard isn’t fully capable of supporting UHD.
(I’m sure you’ve done all the above, but just double-check those steps before you call MSFT.)
Some ideas for you.