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mine_diver

Member

Registered: 2024-03-18

Posts: 8

[SOLVED] Installing both nvidia-470xx-dkms and nvidia-dkms

Hello.

Is it possible to install both drivers so I can use both of my GPUs?
One is GTX 1660 SUPER, the other one is GTX 660.
Driver 550 doesn't support GTX 660, so I can't use it.

Thanks.

Last edited by mine_diver (2024-04-24 10:33:38)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 21,820

Re: [SOLVED] Installing both nvidia-470xx-dkms and nvidia-dkms

For what end goal? The GTX 1660 SUPER is going to be better for every usecase. And no you can't.

mine_diver

Member

Registered: 2024-03-18

Posts: 8

Re: [SOLVED] Installing both nvidia-470xx-dkms and nvidia-dkms

Initially, I wanted to use it for my Windows 7 QEMU VM.
Everything was good, VM detected the GPU properly, and I installed the drivers.

However, there was no output on HDMI when I restarted the VM with disabled virtual graphics.
There were sounds from Windows 7 starting and shutting down though.

I did buy the GPU used, so I suspect that HDMI is faulty,
thus I want to check if it will work on my host to determine if it's an issue with my VM or HDMI after all.
After contacting the seller about this, he did say that he never actually used HDMI, only DVI, but I don't have a DVI cable right now to test.

loqs

Member

Registered: 2014-03-06

Posts: 17,467

Re: [SOLVED] Installing both nvidia-470xx-dkms and nvidia-dkms

What if you blacklist nvidia on the command line for a boot and use nouveau for both cards?

mine_diver

Member

Registered: 2024-03-18

Posts: 8

Re: [SOLVED] Installing both nvidia-470xx-dkms and nvidia-dkms

Apparently, the issue with the VM was that GTX 660 doesn't support UEFI and thus OVMF.

Pointing QEMU to a VBIOS from a slightly newer model and patching that fixed everything.

Didn't solve this topic's issue, but I guess I'll mark it as solved as the original issue was solved.