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    Intel iGPU passthough

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    • X Offline
      xerxist @bullerwins
      last edited by xerxist

      @bullerwins

      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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      • bullerwinsB Offline
        bullerwins @xerxist
        last edited by

        @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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        • X Offline
          xerxist @bullerwins
          last edited by

          @bullerwins

          Yes I'm running 8.3 Beta

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          • H Offline
            hawkpro
            last edited by

            @bullerwins @xerxist

            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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            • F Online
              flakpyro @hawkpro
              last edited by

              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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              • C Offline
                CJ
                last edited by

                @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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                • F Online
                  flakpyro @CJ
                  last edited by

                  @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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                  • X Offline
                    xerxist @CJ
                    last edited by

                    @CJ

                    No output just need the Intel quick sync.

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                    • C Offline
                      CJ @xerxist
                      last edited by

                      @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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                      • MefosheezM Offline
                        Mefosheez @bullerwins
                        last edited by

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                        • MefosheezM Offline
                          Mefosheez @bullerwins
                          last edited by

                          @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:
                          9aa61d84-dd71-4f32-9590-8cff8c365a1a-image.png

                          @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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                          • S Offline
                            scawtydont
                            last edited by

                            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.

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                            • olivierlambertO Online
                              olivierlambert Vates 🪐 Co-Founder CEO @scawtydont
                              last edited by

                              @scawtydont Thanks for keeping us posted. Dummy plug is still a thing it seems 😄

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