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authorChristian Krinitsin <mail@krinitsin.com>2025-05-30 16:52:07 +0200
committerChristian Krinitsin <mail@krinitsin.com>2025-05-30 16:52:17 +0200
commit9260319e7411ff8281700a532caa436f40120ec4 (patch)
tree2f6bfe5f3458dd49d328d3a9eb508595450adec0 /gitlab/issues/target_missing/host_missing/accel_missing/1597.toml
parent225caa38269323af1bfc2daadff5ec8bd930747f (diff)
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@@ -1,64 +0,0 @@
-id = 1597
-title = "Intel Arc A-Series GPUs VFIO passthrough no video out"
-state = "closed"
-created_at = "2023-04-13T04:22:19.631Z"
-closed_at = "2023-05-09T01:43:48.009Z"
-labels = ["VFIO"]
-url = "https://gitlab.com/qemu-project/qemu/-/issues/1597"
-host-os = "Arch Linux"
-host-arch = "x86_64"
-qemu-version = "7.2.1"
-guest-os = "Windows 10"
-guest-arch = "x86_64"
-description = """Once the VM is booted, the screen goes blank."""
-reproduce = """1. Passthough any Intel Arc A (Alchemist) series video card.
-2. Boot VM.
-3. Screen goes blank."""
-additional = """I have startup and shutdown scripts that detach and reattach the card and these scripts work fine if I test them alone. It's only when I start the VM that issue presents itself.
-
-
-
-kernel command line:
-
-```
-amd_iommu=on iommu=pt rd.driver.pre=vfio-pci pci=realloc iommu=1 i915.force_probe=*
-
-```
-
-startup script:
-
-```
-#!/bin/bash
-# Helpful to read output when debugging
-set -x
-
-# Load the config file with our environmental variables
-source "/etc/libvirt/hooks/kvm.conf"
-source "/etc/libvirt/hooks/vmPreBootSetup"
-
-cpuPerf
-
-# Stop your display manager. If you're on kde it'll be sddm.service. Gnome users should use 'killall gdm-x-session' instead
-systemctl stop gdm.service
-
-# Unbind VTconsoles
-echo 0 > /sys/class/vtconsole/vtcon0/bind
-echo 0 > /sys/class/vtconsole/vtcon1/bind
-
-# Avoid a race condition by waiting a couple of seconds. This can be calibrated to be shorter or longer if required for your system
-sleep 2
-
-modprobe -r drm_buddy intel_gtt video drm_display_helper cec ttm i915
-
-# Unbind the GPU from display driver
-virsh nodedev-detach $VIRSH_GPU_VIDEO
-virsh nodedev-detach $VIRSH_GPU_AUDIO
-
-# Load VFIO kernel module
-modprobe vfio
-modprobe vfio_pci
-modprobe vfio_iommu_type1
-
-sleep 5s ; systemctl restart connman.service
-
-```"""