I have pasted my log below.  Any suggestions regarding where to begin?

 

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-device '{"driver":"ich9-usb-uhci2","masterbus":"usb.0","firstport":2,"bus":"pcie.0","addr":"0x7.0x1"}' \
-device '{"driver":"ich9-usb-uhci3","masterbus":"usb.0","firstport":4,"bus":"pcie.0","addr":"0x7.0x2"}' \
-device '{"driver":"virtio-serial-pci","id":"virtio-serial0","bus":"pci.2","addr":"0x0"}' \
-blockdev '{"driver":"file","filename":"/mnt/disk1/Personal/VM/VM_03_Ubuntu_2204_DS/Ubuntu_2204_VM_03_DS/vdisk1.img","node-name":"libvirt-2-storage","cache":{"direct":false,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
-blockdev '{"node-name":"libvirt-2-format","read-only":false,"cache":{"direct":false,"no-flush":false},"driver":"raw","file":"libvirt-2-storage"}' \
-device '{"driver":"virtio-blk-pci","bus":"pci.3","addr":"0x0","drive":"libvirt-2-format","id":"virtio-disk2","bootindex":1,"write-cache":"on"}' \
-blockdev '{"driver":"file","filename":"/mnt/user/isos/Ubuntu_2204/ubuntu-22.04.1-desktop-amd64.iso","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
-blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
-device '{"driver":"ide-cd","bus":"ide.0","drive":"libvirt-1-format","id":"sata0-0-0","bootindex":2}' \
-netdev tap,fd=37,id=hostnet0 \
-device '{"driver":"virtio-net","netdev":"hostnet0","id":"net0","mac":"52:54:00:4e:92:9e","bus":"pci.1","addr":"0x0"}' \
-chardev pty,id=charserial0 \
-device '{"driver":"isa-serial","chardev":"charserial0","id":"serial0","index":0}' \
-chardev socket,id=charchannel0,fd=35,server=on,wait=off \
-device '{"driver":"virtserialport","bus":"virtio-serial0.0","nr":1,"chardev":"charchannel0","id":"channel0","name":"org.qemu.guest_agent.0"}' \
-device '{"driver":"usb-tablet","id":"input0","bus":"usb.0","port":"1"}' \
-audiodev '{"id":"audio1","driver":"none"}' \
-vnc 0.0.0.0:0,websocket=5700,audiodev=audio1 \
-k en-us \
-device '{"driver":"qxl-vga","id":"video0","max_outputs":1,"ram_size":67108864,"vram_size":67108864,"vram64_size_mb":0,"vgamem_mb":16,"bus":"pcie.0","addr":"0x1"}' \
-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.4","addr":"0x0"}' \
-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
-msg timestamp=on
char device redirected to /dev/pts/3 (label charserial0)
qxl_send_events: spice-server bug: guest stopped, ignoring
2022-11-05T10:56:56.075837Z qemu-system-x86_64: terminating on signal 15 from pid 13489 (/usr/sbin/libvirtd)
2022-11-05 10:56:56.309+0000: shutting down, reason=shutdown
2022-11-05 10:57:26.461+0000: starting up libvirt version: 8.7.0, qemu version: 7.1.0, kernel: 5.19.14-Unraid, hostname: CorsairR10
LC_ALL=C \
PATH=/bin:/sbin:/usr/bin:/usr/sbin \
HOME=/var/lib/libvirt/qemu/domain-11-Ubuntu_2204_VM_03_DS \
XDG_DATA_HOME=/var/lib/libvirt/qemu/domain-11-Ubuntu_2204_VM_03_DS/.local/share \
XDG_CACHE_HOME=/var/lib/libvirt/qemu/domain-11-Ubuntu_2204_VM_03_DS/.cache \
XDG_CONFIG_HOME=/var/lib/libvirt/qemu/domain-11-Ubuntu_2204_VM_03_DS/.config \
/usr/local/sbin/qemu \
-name guest=Ubuntu_2204_VM_03_DS,debug-threads=on \
-S \
-object '{"qom-type":"secret","id":"masterKey0","format":"raw","file":"/var/lib/libvirt/qemu/domain-11-Ubuntu_2204_VM_03_DS/master-key.aes"}' \
-blockdev '{"driver":"file","filename":"/usr/share/qemu/ovmf-x64/OVMF_CODE-pure-efi.fd","node-name":"libvirt-pflash0-storage","auto-read-only":true,"discard":"unmap"}' \
-blockdev '{"node-name":"libvirt-pflash0-format","read-only":true,"driver":"raw","file":"libvirt-pflash0-storage"}' \
-blockdev '{"driver":"file","filename":"/etc/libvirt/qemu/nvram/1c7f5d01-8c6f-b2a6-f4c1-97b36a34874d_VARS-pure-efi.fd","node-name":"libvirt-pflash1-storage","auto-read-only":true,"discard":"unmap"}' \
-blockdev '{"node-name":"libvirt-pflash1-format","read-only":false,"driver":"raw","file":"libvirt-pflash1-storage"}' \
-machine pc-q35-7.1,usb=off,dump-guest-core=off,mem-merge=off,memory-backend=pc.ram,pflash0=libvirt-pflash0-format,pflash1=libvirt-pflash1-format \
-accel kvm \
-cpu host,migratable=on,topoext=on,host-cache-info=on,l3-cache=off \
-m 128512 \
-object '{"qom-type":"memory-backend-ram","id":"pc.ram","size":134754598912}' \
-overcommit mem-lock=off \
-smp 8,sockets=1,dies=1,cores=4,threads=2 \
-uuid 1c7f5d01-8c6f-b2a6-f4c1-97b36a34874d \
-display none \
-no-user-config \
-nodefaults \
-chardev socket,id=charmonitor,fd=36,server=on,wait=off \
-mon chardev=charmonitor,id=monitor,mode=control \
-rtc base=utc,driftfix=slew \
-global kvm-pit.lost_tick_policy=delay \
-no-hpet \
-no-shutdown \
-boot strict=on \
-device '{"driver":"pcie-root-port","port":16,"chassis":1,"id":"pci.1","bus":"pcie.0","multifunction":true,"addr":"0x2"}' \
-device '{"driver":"pcie-root-port","port":17,"chassis":2,"id":"pci.2","bus":"pcie.0","addr":"0x2.0x1"}' \
-device '{"driver":"pcie-root-port","port":18,"chassis":3,"id":"pci.3","bus":"pcie.0","addr":"0x2.0x2"}' \
-device '{"driver":"pcie-root-port","port":19,"chassis":4,"id":"pci.4","bus":"pcie.0","addr":"0x2.0x3"}' \
-device '{"driver":"pcie-root-port","port":20,"chassis":5,"id":"pci.5","bus":"pcie.0","addr":"0x2.0x4"}' \
-device '{"driver":"ich9-usb-ehci1","id":"usb","bus":"pcie.0","addr":"0x7.0x7"}' \
-device '{"driver":"ich9-usb-uhci1","masterbus":"usb.0","firstport":0,"bus":"pcie.0","multifunction":true,"addr":"0x7"}' \
-device '{"driver":"ich9-usb-uhci2","masterbus":"usb.0","firstport":2,"bus":"pcie.0","addr":"0x7.0x1"}' \
-device '{"driver":"ich9-usb-uhci3","masterbus":"usb.0","firstport":4,"bus":"pcie.0","addr":"0x7.0x2"}' \
-device '{"driver":"virtio-serial-pci","id":"virtio-serial0","bus":"pci.2","addr":"0x0"}' \
-blockdev '{"driver":"file","filename":"/mnt/disk1/Personal/VM/VM_03_Ubuntu_2204_DS/Ubuntu_2204_VM_03_DS/vdisk1.img","node-name":"libvirt-2-storage","cache":{"direct":false,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
-blockdev '{"node-name":"libvirt-2-format","read-only":false,"cache":{"direct":false,"no-flush":false},"driver":"raw","file":"libvirt-2-storage"}' \
-device '{"driver":"virtio-blk-pci","bus":"pci.3","addr":"0x0","drive":"libvirt-2-format","id":"virtio-disk2","bootindex":1,"write-cache":"on"}' \
-blockdev '{"driver":"file","filename":"/mnt/user/isos/Ubuntu_2204/ubuntu-22.04.1-desktop-amd64.iso","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
-blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
-device '{"driver":"ide-cd","bus":"ide.0","drive":"libvirt-1-format","id":"sata0-0-0","bootindex":2}' \
-netdev tap,fd=37,id=hostnet0 \
-device '{"driver":"virtio-net","netdev":"hostnet0","id":"net0","mac":"52:54:00:4e:92:9e","bus":"pci.1","addr":"0x0"}' \
-chardev pty,id=charserial0 \
-device '{"driver":"isa-serial","chardev":"charserial0","id":"serial0","index":0}' \
-chardev socket,id=charchannel0,fd=35,server=on,wait=off \
-device '{"driver":"virtserialport","bus":"virtio-serial0.0","nr":1,"chardev":"charchannel0","id":"channel0","name":"org.qemu.guest_agent.0"}' \
-device '{"driver":"usb-tablet","id":"input0","bus":"usb.0","port":"1"}' \
-audiodev '{"id":"audio1","driver":"none"}' \
-device '{"driver":"vfio-pci","host":"0000:0c:00.0","id":"hostdev0","bus":"pci.4","addr":"0x0"}' \
-device '{"driver":"vfio-pci","host":"0000:0c:00.1","id":"hostdev1","bus":"pci.5","addr":"0x0"}' \
-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
-msg timestamp=on
char device redirected to /dev/pts/3 (label charserial0)
2022-11-05 10:57:52.642+0000: shutting down, reason=failed

What are the symptoms and could you post your XML ?

Black screen and a CPU at 100% ? If yes check this topic, it may be the same issue I had : 

 

Incredibly, all I had to do was install "NoMachine" and utilize it to connect to the machine.  The GPU pass through was even simpler than for Windows since there's no editting of the XML that I had to do.  I now see the card in nvidia-smi (note that I am seeking an ML / Data Science usage...not graphical).

Edited November 6, 20223 yr by dss