Proxmox PCIE Passthrough - Driver Error 43 after reboot

[CastLab]

Hello, i have followed this famous guide to passthrought a GTX 1650 on my VM
All is fine but when rebooting after installing the NVIDIA drivers gives "Error 43" on the gpu in devices management

Here's my configuration:
GRUB

GRUB_DEFAULT=0
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_iommu=on iommu=pt pcie_acs_override=downstream,multifunction nofb nomodeset video=vesafb:off,efifb:off"
GRUB_CMDLINE_LINUX=""

MODULES

vfio
vfio_iommu_type1
vfio_pci
vfio_virqfd

SYSTEMD-BOOT

root=ZFS=rpool/ROOT/pve-1 boot=zfs intel_iommu=on iommu=pt

VM Config.:


root@pve1:~# cat /etc/pve/qemu-server/101.conf

agent: 1
bios: ovmf
boot: order=scsi0;net0;scsi1;ide0
cores: 4
efidisk0: disk-nfs:101/vm-101-disk-0.qcow2,efitype=4m,pre-enrolled-keys=1,size=528K
hostpci0: 0000:01:00.0,pcie=1
ide0: iso-nfs:iso/virtio-win.iso,media=cdrom,size=522284K
machine: pc-q35-7.2
memory: 8192
meta: creation-qemu=7.2.0,ctime=1681896081
name: W10VGA
net0: virtio=9A:35:A7:85:78:7F,bridge=vmbr0,firewall=1
numa: 0
ostype: win10
scsi0: disk-nfs:101/vm-101-disk-1.qcow2,discard=on,iothread=1,size=50G
scsihw: virtio-scsi-single
smbios1: uuid=5ae0fc94-332b-484d-a52e-2965edc10da5
sockets: 1
vga: std
vmgenid: 1272b281-0055-475a-a41d-bcef18cb4253

Issue:

What can i do?
Thanks

 

[leesteken]

If you are passing through the boot (or only) GPU then use this work-around. Also, I think it help to enable Primary GPU when doing passthrough of NVidiia GPUs.