How To (correctly) support 2 cards with different driver versions (RTX2060 & GT730)

Before I make a mess - I’m not sure how I should proceed with something:
I am a long time NVidia user on Linux. My primary GPU is a RTX2060 and it works just fine running with Driver Version: 510.85.02 CUDA Version: 11.6.

Now I need to add a VGA card to drive an older CRT monitor for its color rendition performance for photo editing. I have a GT730 I have added to the machine. The OS sees them both:
lee@lee-X570S:~/Downloads$ lspci | grep VGA
0b:00.0 VGA compatible controller: NVIDIA Corporation TU104 [GeForce RTX 2060] (rev a1)
0c:00.0 VGA compatible controller: NVIDIA Corporation GK208B [GeForce GT 730] (rev a1)

BUT the boot process gives this message:
NVRM: The NVIDIA GeForce GT 730 GPU installed in this system is
NVRM: supported through the NVIDIA 470.xx Legacy drivers. Please
NVRM: visit Unix Drivers | NVIDIA for more
NVRM: information. The 510.85.02 NVIDIA driver will ignore
NVRM: this GPU. Continuing probe…

I have downloaded the 470 driver version, and I am very familiar with how to run that.

My questions is: How do I make sure I only install (use/bind) the 470 version driver for/to the GT730 card, and allow the RTX2060 to continue to use the 510 driver version? (It appears that the RTX2060 is also supported by 470). This is how I could easily see things going badly…

Currently - the OS (Mint/Ubuntu 20.3) manages and installs the proprietary NVIDIA drivers automatically (finally!). I would prefer to not mess that up, but if I need to disable that and takeover manually - I can do that.

Your advice is appreciated.


I asked this question directly of Nividia support - and got this reply:
We request you to contact our Linux support team through the support forum link mentioned below. They will be able to help you with your query or issues related to Linux OS.
Best regards
NVIDIA Customer Care

I realize this is not a developer issue - I’m just doing what I’m told…

Not possible.

Driver 470 lists both the 730 and RTX2060 as supported cards, and has a release date within a month. Can someone say what I would be giving up by downgrading driver 510 to 470? Seems that may be path forward?? - at least to evaluate. I could try and study a bunch of release notes - but maybe someone knows…

Cuda will be locked to 11.4 and no new vulkan features will be introduced.
Edit: Wayland GBM support will also be missing.