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    Intel iGPU passthough

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    • F Offline
      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

            This post is deleted!
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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 Offline
                  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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                  • V Offline
                    vhaelan
                    last edited by vhaelan

                    I'm also trying to pass through my Intel iGPU to a VM, but running into issues. It does work on Debian, however not on Fedora Server which I'd like to use. I have tried changing to BIOS mode, even plugged in a dummy HDMI plug, but nothing helped. SELinux is disabled on Fedora to rule out any issues related to that. I even tried using XCP-NG Center which was suggested in an older post, but that didn't help either: https://xcp-ng.org/forum/topic/6211/intel-gpu-passthrough-question/3

                    I also posted this on the Fedora forum with further details: https://discussion.fedoraproject.org/t/intel-igpu-in-containers/176029

                    Are there any other things I could try to investigate this further?

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                    • O Offline
                      ovicz @vhaelan
                      last edited by

                      @vhaelan Hello. What's the output of rpm -qa | grep intel-gpu-firmware ?

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                      • V Offline
                        vhaelan @ovicz
                        last edited by

                        @ovicz said in Intel iGPU passthough:

                        rpm -qa | grep intel-gpu-firmware

                        Hello @ovicz, I see the following: intel-gpu-firmware-20251021-1.fc43.noarch

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                        • O Offline
                          ovicz @vhaelan
                          last edited by ovicz

                          @vhaelan Is the intel graphics module loaded ?

                          lsmod | grep i915
                          i915 5373952 24
                          drm_buddy 32768 2 xe,i915
                          ttm 135168 3 drm_ttm_helper,xe,i915
                          i2c_algo_bit 20480 2 xe,i915
                          drm_display_helper 331776 2 xe,i915
                          cec 106496 3 drm_display_helper,xe,i915
                          video 81920 2 xe,i91

                          sudo dmesg | grep i915
                          [ 5.855595] i915 0000:00:08.0: [drm] Found alderlake_p/alderlake_n (device ID 46d1) integrated display version 13.00 stepping D0
                          [ 5.858477] i915 0000:00:08.0: [drm] VT-d active for gfx access
                          [ 5.858739] i915 0000:00:08.0: [drm] Using Transparent Hugepages
                          [ 5.859307] i915 0000:00:08.0: Invalid PCI ROM header signature: expecting 0xaa55, got 0x4556
                          [ 5.859312] i915 0000:00:08.0: [drm] Failed to find VBIOS tables (VBT)
                          [ 5.860012] i915 0000:00:08.0: vgaarb: VGA decodes changed: olddecodes=io+mem,decodes=none:owns=io+mem
                          [ 5.878556] i915 0000:00:08.0: [drm] Finished loading DMC firmware i915/adlp_dmc.bin (v2.20)
                          [ 7.806109] i915 0000:00:08.0: [drm] [ENCODER:204:DDI A/PHY A] failed to retrieve link info, disabling eDP
                          [ 7.843768] i915 0000:00:08.0: [drm] GT0: GuC firmware i915/tgl_guc_70.bin version 70.49.4
                          [ 7.843776] i915 0000:00:08.0: [drm] GT0: HuC firmware i915/tgl_huc.bin version 7.9.3
                          [ 7.849282] i915 0000:00:08.0: [drm] GT0: HuC: authenticated for all workloads
                          [ 7.850868] i915 0000:00:08.0: [drm] GT0: GUC: submission enabled
                          [ 7.850874] i915 0000:00:08.0: [drm] GT0: GUC: SLPC enabled
                          [ 7.851225] i915 0000:00:08.0: [drm] GT0: GUC: RC enabled
                          [ 7.852797] i915 0000:00:08.0: [drm] Protected Xe Path (PXP) protected content support initialized
                          [ 7.854314] i915 0000:00:08.0: [drm] Registered 3 planes with drm panic
                          [ 7.854318] [drm] Initialized i915 1.6.0 for 0000:00:08.0 on minor 1

                          Also see in /etc/default/grub if there is NOMODESET in GRUB_CMDLINE_LINUX line.

                          That's from my Fedora 43 vm with passthrough enabled.

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