GA990FX - Linux No Network?

[CORE]

As Title says I have an odd issue with Linux on my GA990FX Motherboard "Failed to Activate Network" I therefore have no Network on my Linux OS.

I have tryed Ubuntu/POP and Fedora same result and to make things even more odd I bought a seperate PCIE Network Card and I get the same Error.

Any help would be appreciated I understand the OnBoard NIC not working but what gives with the Expansion NIC.

Here is my Specs.

https://www.gigabyte.com/Motherboard/GA-990FX-Gaming-rev-10#ov

Killer E2200 Network OnBoard Linux Identifies as Atheros.

The Expansion NIC appears to be Realtek Identified via Linux.

FX 9590 - 16GB DDR3 - RX590 8GB.

So either Linux is a no go on this MotherBoard or is there a specific setting that can mess with this via BIOS/UEFI.

 

[CORE]

*UPDATE*

Found out that my MotherBoard USB3.0 Controller Enabled Breaks my Ethernet even on a seperate PCIE Network Card.
Disable it and you get Ethernet but loose USB3.0.

Solution is to apparently have XCHI Enabled, IOMMU Enabled, Legacy Boot Enabled. So Far my Problem still persists unless I disable USB3.0 Controller.

# For AMD CPUs
GRUB_CMDLINE_LINUX_DEFAULT="amd_iommu=on iommu=pt amd_iommu=fullflush"

I am yet to do this edit via Grub although I am trying to get POPOS! to use this so systemd is what I need to add the above Commands into.

Just putting this here incase someone else has problems and hopefully anyone has other Solutions.

 

[Joom]

Why would you add this to systemd and not GRUB's configuration? I would think you would add it to GRUB's skeleton config (you're not supposed to directly edit its configuration file), and then run grub-mkconfig. This said, it's been quite a few years since I've tinkered with Linux, so things might be vastly different now.

 

[CORE]

Apparently Pop OS does not use Grub anymore and just Systemd which also makes things even more difficult for me because I dont know where to look Grub directory exists but no Grub.

 

[Joom]

Apparently Pop OS does not use Grub anymore and just Systemd which also makes things even more difficult for me because I dont know where to look Grub directory exists but no Grub.

Well, GRUB, or any bootloader for that matter, usually resides in /boot. However, systemd now being a bootloader is new to me, and also concerning. I never liked systemd, and its standardization is one of the reasons why I left Linux. Anyway, I recommend checking the Arch Wiki. It's like a community driven Linux bible, and its guides are usually applicable to any distribution. I hope this page is relevant, but if not, you may have to look around a little more.

https://wiki.archlinux.org/index.php/systemd-boot

 

[Youtubuntu]

For grub-related tasks I recommend using GUI-based grub-customizer unless you're already an advanced user. It handles some stuff for you and I feel makes grub-related tasks safer.

But it is useless in case of systemd-boot.