Intel iGPU passthough
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@xerxist my ubuntu 22.04 install came with kernel 5.15, i have it updated regularly but it doens't update the kernel it seems. But newer fresh installs of ubuntu 22.04 install a newer kernel. I'll check out if the kernel needs to be manually updated
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Not in the VM itself.
I even went to kernel 6.6 and try it in there, all give the same issue.Something on the hypervisor side in the kernel I meant. This is 4.x something with allot of backports.
I'll probably just wait a wile before moving full XCP-NG.
But its a very nice system
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@xerxist have you tried with the 8.3 beta of XCP-ng? I believe it's got a newer kernel maybe?
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Yes I'm running 8.3 Beta
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Is this just the mediated (gvt-g?) device passthrough, so the XCP side/server maintains video but a VM can make use of the resources as well?
I am very interested in this (plex, frigate type use) as a stepping stone away from Proxmox.
Thanks
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In my testing of this, iGPU passthru works fine in Linux but in Windows the device will show an error in the device manager, disable/enabling the drive in the device manager will allow it to work, until next reboot.
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@bullerwins @xerxist @flakpyro
What are you using for display output on the host since you're passing the iGPU to the VM?
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@CJ Im running server grade hardware that has remote lights out management with iKVM support. Otherwise yeah you would lose access to the display output.
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No output just need the Intel quick sync.
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@xerxist Yes, QS for the VM but there are times when having a local display of the console comes in handy. That's why I haven't done mine.
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@bullerwins said in Intel iGPU passthough:
@olivierlambert I tried but getting this error when turning on the VM
INTERNAL_ERROR(xenopsd internal error: (Failure
"Error from xenguesthelper: Populate on Demand and PCI Passthrough are mutually exclusive"))Not sure what it means
EDIT: after googleing it seems that static and dynamic memory has to be the same:
@bullerwins thanks for this. I had to restore a VM from a backup and while it was down changed the dynamic value. This certainly saved me some time. I was positive it had to do with remapping the UID on the VM or something on the host side of it. anyways, thanks.
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G gskger referenced this topic on
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I followed this post and it worked for me.
One thing to note in my testing, if I had a monitor / HDMI dummy plug hooked up the transcoding worked reliably.
When I unplugged it I found activity would be present on the iGPU but the video in plex would play/pause constantly then eventually stop. -
@scawtydont Thanks for keeping us posted. Dummy plug is still a thing it seems
