[SOLVED] Networking Error with GPU installed

[hewu]

Hello everybody,
I've got a very odd error with my proxmox setup. Normally my system works fine, but when I install a GPU the network service doesn't start on reboot.
If I use "ifconfig" to check my IP, the service isn't found.
I can't figure out why this happens and didn't find a solution on the web till now.
If you need something to help me, just ask
Thanks in advance

 

[wolfgang]

Hi,

but when I install a GPU

You mean plug in a GPU card?

If I use "ifconfig" to check my IP, the service isn't found.

What is the exact error output?

Maybe it has something to do with the PCI allocation.
What you get as output if you run

lspci -vv

 

[hewu]

Thank you for answering me.

1. Yes, I mean plug in the Card.
2. I entered "lspci -vv" with and without the Card. I've attached the Output files.

I hope you can help me with my Problem.

 

[wolfgang]

You have no IRQ conflicts.

You can try to plug the GPU to another PCIe port.
May there is a bios upgrade what fix this behavior.

 

[hewu]

I plugged the GPU in PCIe Port 4, but nothing changes. Still the Network wont work.
And my BIOS is rev. 3404, the latest ASUS provides for my MB.

I have no ideas what might be the error.

 

[wolfgang]

Can you send the output of this command, when the GPU is pluged.

ip link show

ip a

 

[hewu]

Here they are:

 

[wolfgang]

Can you send the network config.

/etc/network/interfaces

 

[hewu]

no problem

 

[wolfgang]

Your network cards will change the name after plugging in the GPU, so this is why your losing connectivity.
The PCIe path where the predictable network name made of is done by the bios not by the OS.
One Network port is missing.

 

[hewu]

It works !!!
I adjusted my interface and rebooted the system with the GPU.
In /etc/network/interfaces

Spoiler: /etc/network/interfaces

auto lo
iface lo inet loopback

iface enp5s0 inet manual

iface enp6s0 inet manual

iface enp4s0 inet manual

auto vmbr0
iface vmbr0 inet static
address 192.168.0.6
netmask 255.255.255.0
gateway 192.168.0.1
bridge_ports enp5s0
bridge_stp off
bridge_fd 0​

I changed "bridge_ports enp5s0" to "bridge_ports enp7s0".

Thank you very much for your effort and help!

 

[petropetya]

I had the same problem, and this method helped. However, all my VMs lost network connection. Basically it says unidentified network now, but Windows can see drivers. Any idea why how this works?

 

[wolfgang]

Hi petropetya,

pleas open a new thread and explain in detail what the problem is.
Also, your network config would be helpful.