gehenna

That's exactly what I'm saying.

I've resolved this insofar as I've moved the 3080 into my other PC and it works perfectly, so it must be something about the vm or passthrough that DX12 doesn't like. I've put my 3060 in the server and it's working in my vm fine but haven't tested a game yet.

I don't think you need to group your PCI Bridge in the IOMMU GPU group. Try removing that and rebooting

I've moved the GPU from the riser cable directly to the PCIe x16 slot (the first one so full bandwidth). It's working fine again for everything except this error that continues when launching Gotham Knights or after a while in Callisto. Super annoying now that I've removed the only other thing that I suspected might be faulting. I think I'll swap it with the 3060 tonight and at least eliminate one of the GPU's being at fault. Checked the VM event viewer at my most recent crash and have seen three events logged simultaneously, searching back it seems this is consistent with crash timings: Source: nvlddmkm The description for Event ID 0 from source nvlddmkm cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer. If the event originated on another computer, the display information had to be saved with the event. The following information was included with the event: \Device\Video4 Error occurred on GPUID: 300 The message resource is present but the message was not found in the message table also The description for Event ID 13 from source nvlddmkm cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer. If the event originated on another computer, the display information had to be saved with the event. The following information was included with the event: \Device\Video4 Graphics Exception: ESR 0x407020=0x1000 0x407028=0x0 0x40702c=0x1094317f 0x407030=0x0 The message resource is present but the message was not found in the message table The description for Event ID 13 from source nvlddmkm cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer. If the event originated on another computer, the display information had to be saved with the event. The following information was included with the event: \Device\Video4 Graphics Exception: SKEDCHECK05_LOCAL_MEMORY_TOTAL_SIZE failed The message resource is present but the message was not found in the message table

Any more ideas?

Yes I have, the card itself was negative and the audio was positive. Tried changing card to positive too, but that just resulted in crackly audio so reverted.

No I followed a more recent SpaceInvaderOne video and IIRC didn't require a VBIOS to get it working the way I did. I wonder if it's a DX12 issue as DX11 games are stable. I also have a PCI 4.0 riser cable connecting my GPU if that matters. It's a reliable cable I've used before, but I had considered swapping GPU's between machines to test.

Hello, I have an Unraid server in my basement that's running a Windows 11 VM with an EVGA 3080 passed through to the VM, and a 2TB M.2 passed through for the system drive. There is an HDMI cable and USB-C cable coming up through the floor to the lounge TV to display the desktop. It's only about a 3 metre distance through the floor, so it's not a long cable. The USB connects to a little hub behind the TV that has my various dongles attached (Xbox controller / BlueTooth / headphones / etc). This has worked perfectly well for a while, never any reason to think the VM was anything but perfect given its super responsive and stable. But then I noticed when I got Gotham Knights (I know) it won't launch properly. It loads through the splash screen and into the main menu, but then crashes with the following: "A call to D3D12 API Failed with D3D HRESULT error code: 887A0005 DXGI_ERROR_DEVICE_REMOVED with Reason: DXGI_ERROR_DEVICE_HUNG. Please try updating your GPU drivers. Exiting..." This also happens in The Callisto Protocol which I got a few days ago, but I am able to get into the game and play for a while before it happens, usually 10 mins or so, or until there is something on screen that triggers it (holograms seem to). I've Googled and followed most advice about this from the Windows side. Nothing has helped (disabling Steam overlay etc). I am now wondering if this is an issue with the GPU passthrough given the error is about the device being removed and hanging. But, the picture on my screen never wavers - i.e. there's never any issue with the Windows GUI - it's always there and stable. Please let me know if there are any files I should attach to help with this, I'll pull those today and upload them. I should add this works fine on my other PC with RTX3060 Ti, no crashes at all. That's a standalone PC, not a VM.

That hot fix worked for me, just applied now. Thanks.

The nvme boot option you provided worked! I can now see the SSD in my unassigned devices. Fantastic, thank you! Re the last question about EFI mode vs Legacy, is that something to be concerned about or should I just ignore it since everything else about my server is functioning fine (or fine enough for me to not tell otherwise)

In that configuration area I just noticed it's unchecked next to Boot in EFI mode, and Legacy mode is instead selected. Should I be using EFI mode?

Have just tried with a different adapter a few mins ago and getting the same issue, and same logs. Will try the conf now.

Attached to OP

Motherboard: Asrock Z370 Extreme4 version P4.20 Unraid: unRAID server Plus, version 6.8.0 Expansion: Orico M.2 NVME PCle3.0 x16 M.2 SSD Expansion Card M.2: Samsung EVO 970 500GB NVMe M.2 Hi folks I am looking to free up a couple of SATA ports on my motherboard in order to add extra storage to my array. Currently I have 2x older SATA SSD's running cache and as an unassigned device. The idea is to replace these with PCI M.2 devices, and as such I have 3x of the Orico expansion cards that I mention above. I have 1x NVMe M.2 SSD so I'm trying to install that one for now to use as another unassigned device. Reason I'm using PCI expansions is because even though I have 2x M.2 slots on my motherboard, they share SATA lanes which I am using with spinning disks. For some reason this is recognised correctly in my EFI config but not in Unraid. Has anyone run into this before? I can't imagine there's any drivers required and the firmware is up to date on the Z370. Is there anything I'm missing to get this to show up? Interestingly I can see the following in the System Devices section of Unraid: [144d:a808] 02:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller SM981/PM981/PM983 But also some warnings and errors in the syslog related to NVMe: kernel: Buffer I/O error on dev nvme0n1p1, logical block 16259, async page read kernel: nvme nvme0: failed to set APST feature (-19 Let me know if you need any more info to help, thanks mimir-diagnostics-20200110-2058.zip