Hello all, 

 

I am running Unraid 6 and have successfully passed through a 1080TI, USB1 Controller, and Unassigned SSD1 using Windows 10. 

 

I am having troubles with setting up a CentOS7 VM with passthrough for 1060, USB2 Controller, and Unassigned SSD2. I can install and log into the VM using SeaBios or OVMF. I can perform normal actions within the VM but when I try to watch a video in a browser it stutters and then the VM becomes non responsive. 

 

Items I have tried that will allow me to log in but still stutters/lags. Baremetal works perfectly fine. 

 

Used the 1080ti, USB1 controller, and  Unassigned SSD1. - Installs and lets me log in successfully. Still stutters. 

Passed the ROM file. 

Installed the Nvidia drivers and disabled nouvaeu. 

Installed and logged in via VNC. Still stutters. 

 

It has 8 cores and 16GBs of ram that is not shared across other VMs. So plenty of power. 

 

But no matter what configuration I try I experience video lag. I see that VirtualBox has Guest Additions. 

 

Is there additional virtual drivers I should be installing after the VM is up?

 

My next steps is to run some performance tools like Netperf, Iometer, or passmark. But was hoping I was missing an easy step. I was expecting Linux to be the easier of the two VM builds. 

 

Thanks!

 

Well, not sure why but the source of the problem is the passing through the HDMI Audio. If I remove the HDMI audio passthrough and just pass through the GPU video all works well. I am ok with that since I will be passing in USB speakers anyways. Will look into it more at some other time. 

 

I now have successfully built a Win10 and CentOS VM with passthrough. Fun stuff and no FPS loss. 

Thanks all,