So in 2020 when I setup my Unraid box I also setup a Win10VM on it for other general duties and successfully passed through the iGPU which I ran in Plex on the VM for hardware transcoding.

I've noticed that at some point during the last few months that iGPU now has a code 43 in Device Manager. The iGPU is present, I think, as when I go to display settings on the vm console (I have QXL virtual gpu as primary gpu and intel as second) I have 2 screens identified.

Maybe this was as a result of 7.x upgrade?

I have a hdmi port emulator plugged in to the actual hdmi port.

But I still have code43 in device manager and no HW transcode in plex.

Anyone with any ideas i'd be eternally grateful.

Just to add a little colour to this. Here is the XML:

When I first set up this VM in 2020 I thought I had to add some manual xml to this? Maybe something to do with /dev/dri, is that right? Either way looks like whatever I added has been lost in subsequent upgrades....

<?xml version='1.0' encoding='UTF-8'?>

<domain type='kvm' id='1'>

<name>Atlas</name>

<uuid>3688f9ef-9870-8c10-0689-c6edbbe2ba7c</uuid>

<description>Odd-job machine</description>

<metadata>

<vmtemplate xmlns="unraid" name="Windows 10" icon="windows11.png" os="windows10" webui="" iconold="windows11.png"/>

</metadata>

<memory unit='KiB'>16777216</memory>

<currentMemory unit='KiB'>16777216</currentMemory>

<memoryBacking>

<nosharepages/>

</memoryBacking>

<vcpu placement='static'>4</vcpu>

<cputune>

<vcpupin vcpu='0' cpuset='2'/>

<vcpupin vcpu='1' cpuset='3'/>

<vcpupin vcpu='2' cpuset='4'/>

<vcpupin vcpu='3' cpuset='5'/>

</cputune>

<resource>

<partition>/machine</partition>

</resource>

<os>

<type arch='x86_64' machine='pc-i440fx-9.2'>hvm</type>

<loader readonly='yes' type='pflash' format='raw'>/usr/share/qemu/ovmf-x64/OVMF_CODE-pure-efi-tpm.fd</loader>

<nvram format='raw'>/etc/libvirt/qemu/nvram/3688f9ef-9870-8c10-0689-c6edbbe2ba7c_VARS-pure-efi-tpm.fd</nvram>

</os>

<features>

<acpi/>

<apic/>

<hyperv mode='custom'>

<relaxed state='on'/>

<vapic state='on'/>

<spinlocks state='on' retries='8191'/>

<vpindex state='on'/>

<synic state='on'/>

<stimer state='on'/>

<vendor_id state='on' value='none'/>

</hyperv>

</features>

<cpu mode='host-passthrough' check='none' migratable='on'>

<topology sockets='1' dies='1' clusters='1' cores='4' threads='1'/>

<cache mode='passthrough'/>

</cpu>

<clock offset='localtime'>

<timer name='hpet' present='no'/>

<timer name='hypervclock' present='yes'/>

</clock>

<on_poweroff>destroy</on_poweroff>

<on_reboot>restart</on_reboot>

<on_crash>restart</on_crash>

<devices>

<emulator>/usr/local/sbin/qemu</emulator>

<disk type='file' device='disk'>

<driver name='qemu' type='raw' cache='writeback' discard='ignore'/>

<source file='/mnt/user/vms/Atlas/vdisk1.img' index='1'/>

<backingStore/>

<target dev='hdc' bus='virtio'/>

<boot order='1'/>

<alias name='virtio-disk2'/>

<address type='pci' domain='0x0000' bus='0x00' slot='0x0c' function='0x0'/>

</disk>

<controller type='pci' index='0' model='pci-root'>

<alias name='pci.0'/>

</controller>

<controller type='pci' index='1' model='pci-bridge'>

<model name='pci-bridge'/>

<target chassisNr='1'/>

<alias name='pci.1'/>

<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>

</controller>

<controller type='pci' index='2' model='pci-bridge'>

<model name='pci-bridge'/>

<target chassisNr='2'/>

<alias name='pci.2'/>

<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>

</controller>

<controller type='pci' index='3' model='pci-bridge'>

<model name='pci-bridge'/>

<target chassisNr='3'/>

<alias name='pci.3'/>

<address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>

</controller>

<controller type='pci' index='4' model='pci-bridge'>

<model name='pci-bridge'/>

<target chassisNr='4'/>

<alias name='pci.4'/>

<address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>

</controller>

<controller type='pci' index='5' model='pci-bridge'>

<model name='pci-bridge'/>

<target chassisNr='5'/>

<alias name='pci.5'/>

<address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>

</controller>

<controller type='pci' index='6' model='pci-bridge'>

<model name='pci-bridge'/>

<target chassisNr='6'/>

<alias name='pci.6'/>

<address type='pci' domain='0x0000' bus='0x00' slot='0x09' function='0x0'/>

</controller>

<controller type='pci' index='7' model='pci-bridge'>

<model name='pci-bridge'/>

<target chassisNr='7'/>

<alias name='pci.7'/>

<address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/>

</controller>

<controller type='virtio-serial' index='0'>

<alias name='virtio-serial0'/>

<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>

</controller>

<controller type='usb' index='0' model='qemu-xhci' ports='15'>

<alias name='usb'/>

<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>

</controller>

<interface type='bridge'>

<mac address='a8:a1:59:2c:a3:aa'/>

<source bridge='br0'/>

<target dev='vnet0'/>

<model type='virtio-net'/>

<alias name='net0'/>

<address type='pci' domain='0x0000' bus='0x00' slot='0x0b' function='0x0'/>

</interface>

<serial type='pty'>

<source path='/dev/pts/0'/>

<target type='isa-serial' port='0'>

<model name='isa-serial'/>

</target>

<alias name='serial0'/>

</serial>

<console type='pty' tty='/dev/pts/0'>

<source path='/dev/pts/0'/>

<target type='serial' port='0'/>

<alias name='serial0'/>

</console>

<channel type='unix'>

<source mode='bind' path='/run/libvirt/qemu/channel/1-Atlas/org.qemu.guest_agent.0'/>

<target type='virtio' name='org.qemu.guest_agent.0' state='connected'/>

<alias name='channel0'/>

<address type='virtio-serial' controller='0' bus='0' port='1'/>

</channel>

<input type='tablet' bus='usb'>

<alias name='input0'/>

<address type='usb' bus='0' port='1'/>

</input>

<input type='mouse' bus='ps2'>

<alias name='input1'/>

</input>

<input type='keyboard' bus='ps2'>

<alias name='input2'/>

</input>

<tpm model='tpm-tis'>

<backend type='emulator' version='2.0' persistent_state='yes'/>

<alias name='tpm0'/>

</tpm>

<graphics type='vnc' port='5900' autoport='yes' websocket='5700' listen='0.0.0.0' keymap='en-gb' sharePolicy='ignore'>

<listen type='address' address='0.0.0.0'/>

</graphics>

<audio id='1' type='none'/>

<video>

<model type='qxl' ram='131072' vram='65536' vram64='64512' vgamem='65536' heads='1' primary='yes'/>

<alias name='video0'/>

<address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/>

</video>

<hostdev mode='subsystem' type='pci' managed='yes'>

<driver name='vfio'/>

<source>

<address domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>

</source>

<alias name='hostdev0'/>

<rom file='/mnt/user/vms/Atlas/i915ovmf.rom'/>

<address type='pci' domain='0x0000' bus='0x07' slot='0x01' function='0x0' multifunction='on'/>

</hostdev>

<hostdev mode='subsystem' type='pci' managed='yes'>

<driver name='vfio'/>

<source>

<address domain='0x0000' bus='0x00' slot='0x1f' function='0x3'/>

</source>

<alias name='hostdev1'/>

<address type='pci' domain='0x0000' bus='0x07' slot='0x01' function='0x3'/>

</hostdev>

<memballoon model='none'/>

</devices>

<seclabel type='dynamic' model='dac' relabel='yes'>

<label>+0:+100</label>

<imagelabel>+0:+100</imagelabel>

</seclabel>

</domain>