Hello,

Using OpensuseLeap: 15.2

I've been struggling with something for a while now. Maybe someone can help.

I have a 1950x with an Asus Strix Gaming TR4 motherboard.

Here is my problem:

I need to be able to pass through my first pcie slot for the GPU, but can't get it to work the way I want. My biggest GPU needs to go in that slot because if it doesn't I can't physically fit everything else on the board due to how it's set up. Also I need to pass through that card.

When I have it in another slot, I can get it passed through without issue. The problem is; my motherboard does not let me choose my main gpu, so linux tries to use that card for the main system.

I would like to tell Grub to not use that card, or somehow setup linux to not worry about it and default to my other card.

I'm guessing I could use Xorg somehow, but looking at it, it's really confusing me.

Is there a way to just make Grub forget about that card? What are my options?

My other drastic option is to water cool everything so that it will all fit, but I really don't want to go down that road right now.

You have to look for ways to use modified BIOS or unlock your existing BIOS with a mod. Look for patched BIOS, ask questions relating to getting patched or modified BIOS, that's the key to solving your problem. YOU NEED TO BE ABLE TO SELECT MAIN VIDEO CARD IN BIOS.

Grub is nothing but bootloader, it can used to pass commands to the kernel, though. See here how to set the default video output and disable unwanted at boot time.

Thanks for the replies.

I'm thinking this isn't possible without some kind of bios modification, which is beyond what I want to get into.

I've started looking at different options.