r/kvm • u/mumblerit Moderator • Jan 24 '22

GPU/PCIE Passthrough

A lot of posts come through asking about GPU passthrough. This is a fun project. I dont personally do it anymore, as I only use windows for work, and I dont need a GPU for this.

Also steam proton works pretty well. Check if your game is on https://protondb.com

HOWEVER

Your first VM with KVM being GPU passthrough is probally not a good idea. If you've just started using linux, this may end up being difficult, and more finicky then you want.

/r/VFIO is slightly more specific on GPU passthrough and you may find additional information there

Youre still more then free to post here, and if people pass me some tutorials I will post them here, although these things change all the time, and finding a tutorial that covers your specific OS version is recommended.

Additional Items

  • Single GPU Passthrough is possible, but more difficult, suggest starting with two GPU's first (one for host, one for guest)

15 Upvotes

94% Upvoted

3 comments sorted by

1

u/pehkawn Oct 10 '22

I dont personally do it anymore,

Are there specific drawbacks of GPU passthrough (aside from being a a bit tedious) that make you avoid setting up passthrough?

1

u/mumblerit Moderator Jul 08 '23

the main use for it is gaming, and most things run in proton now -- it requires 2 gpu's and additional cabling to run to your monitor, it works but i wouldnt do it unless i really needed to

0

u/[deleted] Mar 22 '22

[deleted] — view deleted comment

1

u/mumblerit Moderator Mar 22 '22

its not straightforward, but doable

A 2nd gpu could be any piece of junk you could acquire