Help choosing hardware

T

tarmanfrotld

New Member
Jan 25, 2025
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Hello,
I upgraded from PVE 8 to 9 and everything went well. The only issue I'm having is hardware-related, with my RTX 2070 (Asus Dual EVO) not working every time after a VM shutdown/startup. Do you have a reference for a card that works reliably for passthrough with at least equivalent performance? I read that the RX6700XT would be a good choice, but which model? Will there be any adjustments required?
Thanks!
 
tarmanfrotld said:
Thanks ! i just bought a 6800xt FE, i hope it will be good.
Click to expand...
I'm not doing any refunds as I cannot control any of this. ;)
EDIT: I do expect you to be able to boot Proxmox with this GPU, pass it through to a VM and load the amdgpu driver again when the VM is shut down.
 
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You hope well, I checked all the boxes primary gpu, ROM-Bar, PCI express and the most important, all functions (the one that makes everything work) and I can switch from a Windows 11 VM to linux mint and vice versa without any problem, without restarting the pc, without black screen, without reset problem, everything went perfectly! Goodbye my old RTX 2070 which bugged randomly, and thank you for the card reference!
 
The Primary GPU setting is for (old) NVidia GPUs and I don't think you need it. Thank you for reporting back (that it works fine).
Does "FE" mean that it's a AMD card and not some other manufacturer that produces Radeon 6800XT cards?
 
i'll try unchecking primary gpu then. I think it's for "Founder Edition" So yes it's a card made by AMD (since there isn't any brand in it i think it's that). Chatgpt told me that since the bios is not modified by a third party manufacturer, it has a better chance of passing for a VM... but hey, it's Chatgpt, you never know if it's true or if he's making it up.
 
Since i unchecked "primary gpu" i can't launch my linux mint VM anymore, and my w11 VM can be launch only once after a PC reboot, it's even worse than with the RTX (which I no longer have).
re check it don't change anything... huge defeat here.
 
Just so everyone knows, it finally works, I launched the Windows 11 VM when rebooting the PC, the VM launched correctly (with all the options checked in the PCI passthrough window). I downloaded the card's BIOS using the "TechPowerUp GPU-Z" software and placed it in "/usr/share/kvm/vbios/Navi21.rom" using the command (running PowerShell in the correct folder):
scp Navi21.rom root@192.168.1.100:/usr/share/kvm/vbios/
In the passthrough settings, I set:
hostpci0: 0000:03:00,pcie=1,x-vga=1,romfile=vbios/Navi21.rom
(0000:03:00 being my RX 6800 XT)
The last issue I had was Linux Mint under Wayland, which I had to switch back to x11 for it to work.

And now I can switch between all my VMs without having to restart the PC entirely.

Last edit : If the vm crash, the video card will be in a "bad state" and nothing can be done apart a full PC reboot, so finally it's a bad video card for proxmox, but it works.
 
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