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shapis via Linux 1 week ago • lemmy (AP)

Is there an easy way of having a vm with gpu pass through to play windows games ?

Basically the title. I’ve only ever seen huge 20 page guides on how to make it work. Is there an easy way?

Specifically on Debian or Arch with a laptop with two gpus (zephyrus g14)

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Nanook 1 week ago friendica

I used the Arch instructions on Ubuntu 22.04 wiki.archlinux.org/title/PCI_p… and it worked, but broke on 24.04 owing to broken UEFI bios on 24.04.

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shapis 1 week ago • lemmy (AP)

Indeed. That’s the opposite of what I’m looking for though. That’s complicated and apparently breaks ?

I’m currently dual booting. Which works fine. I was wondering if there was an easier way though.

Nanook 1 week ago friendica

@shapis It's complicated to setup but once done works wonderfully, you can share one GPU between OS's in real time, even have one windows window up along with Linux at the same time. So I'm temporarily fuxored but I already have a plan for a fix and that is simply to steal the UEFI vm bios from Manjaro which does work and use it on Ubuntu.

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wvstolzing 1 week ago • lemmy (AP)

With Proxmox on AMD gpus, it can be as simple as picking a pci device from a dropdown.

-- but then again, you'll need to learn how to properly use proxmox, esp. with respect to storage configuration. Also, the performance can still suffer, depending on various factors.

If it's not too big of an inconvenience, dual boot is the way to go, IMHO.

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Nanook 1 week ago friendica

@wvstolzing @shapis I personally use kvm/qemu but whatever works for you.

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atzanteol 1 week ago • lemmy (AP)

That's all proxmox does too, just provides a gui and management tools.

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Jo Miran 1 week ago • lemmy (AP)

VMWare Workstation Pro is now free and I believe that it had GPU passthrough. Don't take my word on that though. I haven't used it in a few versions.

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Nanook 1 week ago friendica

@Jo Miran @shapis CPU pass through isn't JUST the function of the hypervisor, the host os, guest os, gpu drivers, and uefi bios ALL play a role.

This entry was edited (1 week ago)

Shoreline, WA, USA

variants 1 week ago • lemmy (AP)

If there's a game that doesn't work on Linux because of anti or something it probably won't work in a vm either so dual booting would probably be the way to go to avoid that

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Nanook 1 week ago friendica

@variants @shapis Not true, a root-kit will break it in wine because wine is just translating windows sys calls into Linux sys calls, but a vm is actually running a windows kernel, then the root kit anti-cheat works fine. With GPU pass through, I have found no games that work under Windows won't also work within the VM.

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halfapage 1 week ago • lemmy (AP)

There are many signs for software running in a VM to realize it does, especially if you want an easy setup. In theory you could mask that, in practice it would be very tedious, time consuming, and not perfect enough anyway.

This entry was edited (1 week ago)

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Nanook 1 week ago friendica

@halfapage I'm saying from experience, nothing I could not get to run in a VM that ran in a physical machine.

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halfapage 1 week ago • lemmy (AP)

You can absolutely run stuff on VM with approximately native performance and it's not even that difficult to set up. I meant that it's not easy to obscure fact of running inside a VM from programs such as anti-cheats, which seemed to be an original concern.

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Nanook 1 week ago friendica

@halfapage Anti-cheats don't generally care if they're running in a vm as long as they can insert kernel drivers.

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PlasticPaperplane 1 week ago • lemmy (AP)

Maybe anti-cheat software does not care if it is running inside a VM, but online-multiplayer game developers do, and they will ban you for using a VM.

Nanook 1 week ago friendica

@PlasticPaperplane I've never been banned, but ok.

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Fonzie! 1 week ago • lemmy (AP)

At least MiHoyo's anti cheat detects and blocks VirtualBox VMs as well as Waydroid.

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Nanook 1 week ago friendica

@Fonzie! Interesting, haven't played that game so no experience with it. VirtualBox does do some things a bit differently, I was not able to get flyff to run it well, it runs but at about 3fps, where as it runs normally in kvm/qemu.

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JustMarkov 1 week ago • lemmy (AP)

Vanguard (Valorant, LoL) detects a VM pretty easily.

shekau 1 week ago • lemmy (AP)

Damn that really fucking sucks man :/

TarantulaFudge 4 days ago • lemmy (AP)

I mean, I hope they keep doing that because Valorant sucks. Everything about it is boring and 20 bucks for one gun wrap is outrageous. The rootkit is invasion of privacy I don't want to reboot just to play. The rounds go on for so long people just get bored and start griefing... If you leave early the game punishes you hard. There are plenty of better games to play. Not to mention it's only KB/M no cross play no ability for players with disabilities. Perfect for conservatives who only care about themselves like to have players begging to drop their wrapped guns

This entry was edited (4 days ago)

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blobjim [he/him] 1 week ago • lemmy (AP)

I also don't know if there's any Linux program that will automatically do the configuration for you.

It seems like it would be pretty complex since I guess you need to disable the linux host from using the GPU, and do PCI passthrough in a VM that has Windows installed.

And there's still the problem of the graphics needing to move around the system in order to get to the display instead of the display being directly connected to the GPU.

Seems like a pretty cool thing that would be neat to have a nice automated GUI solution for.

I was just looking at, seems like it's difficult but not impossible

I'm in the same boat that it seems too difficult (and I bet the performance still isn't near native).

I just dual boot and boot into Windows if I'm going to play a game.

Single GPU Passthrough Tutorial - KVM/VFIO

The world's first and world's best video tutorial on single gpu passthrough. Play video games in a Windows VM running on Linux# LINKS #Discord Invite: https:...

^YouTube

This entry was edited (1 week ago)

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Nanook 1 week ago friendica

It seems like it would be pretty complex since I guess you need to disable the linux host from using the GPU, and do PCI passthrough in a VM that has Windows installed.@blobjim [he/him] @shapis

This is all addressed by the Linux kernel and xml code specifying it for the VM.

And there's still the problem of the graphics needing to move around the system in order to get to the display instead of the display being directly connected to the GPU.

Again handled by the kernel and qemu, just requires a bit of XML code in the vm description. Not a big deal.

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xtapa 1 week ago • lemmy (AP)

Does it have to be a VM? Is Steam or Lutris not an option?

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Nanook 1 week ago friendica

@xtapa @shapis Lutris is just wine, so any game using a kernel anti-cheat won't work under Lutris. And most of the games I play aren't steam so it does me little good personally, and many of the steam games I have tried don't work on Linux in spite of steam being installed.

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Thorry84 1 week ago • lemmy (AP)

Most anti-cheat doesn't take kindly to running in a VM as well, so if that's the reason it won't work.

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brian 1 week ago • lemmy (AP)

proton has support for quite a few kernel level anti cheat now, although it has to be explicitly allowed by the dev. needs to be run via steam I think, but you can add non steam games if you got them elsewhere

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antsu 1 week ago • lemmy (AP)

I have the 2020 G14 and I got this working once. I'm afraid easy and simple are not a thing here, as you need to understand what you're doing if you want it to work well.
The basics are:
- Prevent the host system from loading any drivers that touch the discrete GPU. This is done by attaching it to the VFIO driver and uninstalling/blacklisting the Nvidia and Nouveau drivers.
- Make sure you have the correct kernel parameters to support virtualisation and PCI-e passthrough.
- Create a Windows VM and attach the Nvidia GPU to it.
- Setup Looking Glass so you can play with the best possible latency. This will likely require a dummy USB-C display stick.

Personally, I don't think it's worth the hassle. I keep a Windows install for when it's needed, and do most of my gaming on a separate system.

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Ptsf 1 week ago • lemmy (AP)

Easy way to get yourself banned in online games just an FYI. Most online games will detect and ban virtual machines now since they've become commonplace in cheat/hack communities.

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Nanook 1 week ago friendica

@Ptsf @shapis I've primarily gamed from a virtual machine and have NEVER EVER been banned, so I don't think so.

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Ptsf 1 week ago • lemmy (AP)

Depends on the game. Apex, Riot, ubisoft, and EA all ban vm players. A list of other companies do as well.

This entry was edited (1 week ago)

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Nanook 1 week ago friendica

@Ptsf Haven't played any of those. Anyway, there is a way to edit your xml to fake the machine id.

brian 1 week ago • lemmy (AP)

machine id isn't necessarily the important part. anticheat and vm detection check a lot of different heuristics incl hard to defend against things like timing attacks on particular cpu instructions. there's a handful of open source versions if you're curious

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Nanook 1 week ago friendica

@brian To be honest, until and unless it becomes a problem for me, not really. KVM has the host CPU executing the VM instructions so timing on CPU instructions should product identical results. I have the VM setup as CPU and GPU pass through.

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brian 1 week ago • lemmy (AP)

even with cpu passthrough some things are still emulated. you can run a vm detector and see for yourself what tests fail.

it may not affect your games but others should still be careful since it is a real issue, and people do get banned for it.

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Nanook 1 week ago friendica

@brian Ok, just for kicks tell me where I can get this.

brian 1 week ago • lemmy (AP)

I've never used it but this one seems like the most complete currently, and it'll tell you which tests fail.

GitHub - kernelwernel/VMAware: VM detection library and tool

VM detection library and tool. Contribute to kernelwernel/VMAware development by creating an account on GitHub.

^GitHub

Nanook 6 days ago friendica

@brian I have used it and with flyff at least the performance was far insuperior to kvm/qemu.

Sheldan 6 days ago • lemmy (AP)

The most random mention of Flyff I have seen yet, as long as you mean the game.

Nanook 6 days ago friendica

@Sheldan Yes I am referring to the game, back when I had tried on vmware it was still the main commercial one that I was playing, I have since moved to Insanity Flyff. One of those minor continuities in my life.

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Presi300 6 days ago • lemmy (AP)

It's not... easy but it's also not 20 pages difficult, unless you wanna do sinlge GPU passtrough, then that's black magic.

This along with the arch wiki's page on GPU passtrough should be enough to get you setup

E: Pro tip - pay close attention to section 2.3 Gotchas in the arch wiki, this sh!t had me stuck for a while on my system

Install GPU Passthrough on Arch Linux. HYPRLAND and Qtile integration with Looking Glass and RDP.

GPU passthrough on Arch Linux and integration into Hyprland and Qtile with RDP and Looking glass. Step by step guide to passthrough a second graphics card i...

^YouTube

This entry was edited (6 days ago)

Nanook 6 days ago friendica

Single GPU isn't substantially harder than 2GPU pass through, that is what I have done, but it does require support by the UEFI bios and the GPU and not all support it.

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