A bit ago I set up a Windows VM into which I passed through a GTX1060 for remote rendering. I set up a TightVNC server inside it so I can remote into it even when the GPU is set as the primary card (has to be for Davinci Resolve to work).
Recently I updated Proxmox VE with the pve-no-subscription repo enabled and it seems to have broken this passthrough. Now the VM displays no output when the GPU is set as primary.
Dmesg shows:
Journalctl shows:
lspci -nnk shows:
lsmod | grep vfio shows:
When the VM is running, there is no display to the GPU's HDMI output like there was before the update. Connecting to the TightVNC server succeeds but shows a black screen. Pinging the VM succeeds.
Running PVE v8.2.4 with 6.8.12-1-pve kernel, motherboard BIOS was not updated recently.
Recently I updated Proxmox VE with the pve-no-subscription repo enabled and it seems to have broken this passthrough. Now the VM displays no output when the GPU is set as primary.
Dmesg shows:
Code:
[237639.594070] vfio-pci 0000:01:00.0: Invalid PCI ROM header signature: expecting 0xaa55, got 0x8b42Journalctl shows:
Code:
Sep 10 09:33:53 skmedia kernel: vfio-pci 0000:01:00.0: Invalid PCI ROM header signature: expecting 0xaa55, got 0x8b42
Sep 10 09:33:53 skmedia QEMU[3636670]: kvm: vfio-pci: Cannot read device rom at 0000:01:00.0
Sep 10 09:33:53 skmedia QEMU[3636670]: Device option ROM contents are probably invalid (check dmesg).
Sep 10 09:33:53 skmedia QEMU[3636670]: Skip option ROM probe with rombar=0, or load from file with romfile=lspci -nnk shows:
Code:
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP106 [GeForce GTX 1060 6GB] [10de:1c03] (rev a1)
Subsystem: Micro-Star International Co., Ltd. [MSI] GP106 [GeForce GTX 1060 6GB] [1462:3283]
Kernel driver in use: vfio-pci
Kernel modules: nvidiafb, nouveau
01:00.1 Audio device [0403]: NVIDIA Corporation GP106 High Definition Audio Controller [10de:10f1] (rev a1)
Subsystem: Micro-Star International Co., Ltd. [MSI] GP106 High Definition Audio Controller [1462:3283]
Kernel driver in use: vfio-pcilsmod | grep vfio shows:
Code:
vfio_pci 12288 2
vfio_pci_core 81920 1 vfio_pci
vfio_iommu_type1 45056 1
vfio 65536 8 vfio_pci_core,vfio_iommu_type1,vfio_pci
iommufd 94208 1 vfio
irqbypass 12288 2 vfio_pci_core,kvmWhen the VM is running, there is no display to the GPU's HDMI output like there was before the update. Connecting to the TightVNC server succeeds but shows a black screen. Pinging the VM succeeds.
Running PVE v8.2.4 with 6.8.12-1-pve kernel, motherboard BIOS was not updated recently.