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joeknock90 / Single-GPU-Passthrough

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No signal from GPU (Blank Screen) #67

Open Helinos opened 3 years ago

Helinos commented 3 years ago

Hardware:

Files:

The reason I've titled this no signal from gpu rather than just making another "Blank Screen" post is because I believe the VM is actually passed the GPU.

I'm able to start and shutdown the VM via SSH and successfully return to the host. When I run start.sh on it's own I can hear my GPU's fan spin up to, presumably, whatever the fan's default speed is when it's not being controlled by a driver, and when I start the VM, the GPU fan spins down. However this is just conjecture and could be unrelated to whether or not the VM is actually passed the GPU.

This also may or may not be related, but I am using the ACS override patch as the default IOMMU group contained a Host Bridge and three PCI Bridges.

Nycz-lab commented 3 years ago

Hey, don't certainly know that we have the same error but if it is the same then just wait. Leave the vm/windows do its thing. I had the same issue and thought the vm worked but there just was no graphical output and i waited for like 3min or so and suddenly windows popped up. I think it was a problem with windows taking long to install drivers and such

NepJr commented 3 years ago

Before the modprobe segment, add rtcwake -m mem -s 5 and make sure you've patched your kernel for the AMD reset bug

Helinos commented 3 years ago

I tried both of these and it doesn't look like windows ever woke up, and putting my pc to sleep didn't make a difference.

From what I've been able to garner about the AMD reset bug is that it only affects the linux host trying to reclaim the GPU and haven't actually tried it. If this isn't true I may need to be pointed towards the correct resources pertaining to patching a kernel, as I've presumably found the patch, I just have no idea how to begin applying it.

zany130 commented 3 years ago

I think I'm having the same issue on a GTX 1080 i posted about it the vifo reddit https://www.reddit.com/r/VFIO/comments/oajkmp/gtx_1080_vfio_passthrough_to_windows_10_from_arch/?utm_medium=android_app&utm_source=share

Void-0000 commented 1 year ago

I think I'm having the same issue, has anyone figured out how to make this work?