After upgrading to 7.X, GPU hardware acceleration cannot be enabled. I learned from BBS that the new kernel is upgraded, and the graphics card still cannot work.
The environment is as follows：
The environment is as follows：
root@pve:~# pveversion -v
proxmox-ve: 7.1-1 (running kernel: 5.15.7-1-pve)
pve-manager: 7.1-8 (running version: 7.1-8/5b267f33)
pve-kernel-5.15: 7.1-7
pve-kernel-helper: 7.1-6
pve-kernel-5.13: 7.1-5
pve-kernel-5.15.7-1-pve: 5.15.7-1
pve-kernel-5.13.19-2-pve: 5.13.19-4
ceph-fuse: 14.2.21-1
corosync: 3.1.5-pve2
criu: 3.15-1+pve-1
glusterfs-client: 9.2-1
ifupdown: 0.8.36+pve1
ksm-control-daemon: 1.4-1
libjs-extjs: 7.0.0-1
libknet1: 1.22-pve2
libproxmox-acme-perl: 1.4.0
libproxmox-backup-qemu0: 1.2.0-1
libpve-access-control: 7.1-5
libpve-apiclient-perl: 3.2-1
libpve-common-perl: 7.0-14
libpve-guest-common-perl: 4.0-3
libpve-http-server-perl: 4.0-4
libpve-storage-perl: 7.0-15
libqb0: 1.0.5-1
libspice-server1: 0.14.3-2.1
lvm2: 2.03.11-2.1
lxc-pve: 4.0.11-1
lxcfs: 4.0.11-pve1
novnc-pve: 1.3.0-1
proxmox-backup-client: 2.1.2-1
proxmox-backup-file-restore: 2.1.2-1
proxmox-mini-journalreader: 1.3-1
proxmox-widget-toolkit: 3.4-4
pve-cluster: 7.1-3
pve-container: 4.1-3
pve-docs: 7.1-2
pve-edk2-firmware: 3.20210831-2
pve-firewall: 4.2-5
pve-firmware: 3.3-4
pve-ha-manager: 3.3-1
pve-i18n: 2.6-2
pve-qemu-kvm: 6.1.0-3
pve-xtermjs: 4.12.0-1
qemu-server: 7.1-4
smartmontools: 7.2-pve2
spiceterm: 3.2-2
swtpm: 0.7.0~rc1+2
vncterm: 1.7-1
zfsutils-linux: 2.1.1-pve3
root@pve:~# lspci -v
[FONT=Open Sans]00:02.0 VGA compatible controller: Intel Corporation Device 5906 (rev 02) (prog-if 00 [VGA controller])[/FONT]
DeviceName: Onboard - Video
Subsystem: Intel Corporation Device 2212
Flags: fast devsel, IRQ 16, IOMMU group 1
Memory at de000000 (64-bit, non-prefetchable) [size=16M]
Memory at c0000000 (64-bit, prefetchable) [size=256M]
I/O ports at f000
Expansion ROM at 000c0000 [virtual] [disabled] [size=128K]
Capabilities: [40] Vendor Specific Information: Len=0c <?>
Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
Capabilities: [ac] MSI: Enable- Count=1/1 Maskable- 64bit-
Capabilities: [d0] Power Management version 2
Capabilities: [100] Process Address Space ID (PASID)
Capabilities: [200] Address Translation Service (ATS)
Capabilities: [300] Page Request Interface (PRI)
Kernel driver in use: vfio-pci
Kernel modules: i915
root@pve:~# dmesg
[ 92.717431] DMAR: DRHD: handling fault status reg 3
[ 92.717508] DMAR: [DMA Read NO_PASID] Request device [00:02.0] fault addr 0x8e00a000 [fault reason 0x05] PTE Write access is not set
[ 92.717608] DMAR: DRHD: handling fault status reg 3
[ 92.717679] DMAR: [DMA Read NO_PASID] Request device [00:02.0] fault addr 0x8e00d000 [fault reason 0x05] PTE Write access is not set
[ 92.717992] DMAR: DRHD: handling fault status reg 3
[ 92.718066] DMAR: [DMA Read NO_PASID] Request device [00:02.0] fault addr 0x8e002000 [fault reason 0x05] PTE Write access is not set
[ 92.718218] DMAR: DRHD: handling fault status reg 3
[ 97.713080] dmar_fault: 100850 callbacks suppressed
[ 97.713084] DMAR: DRHD: handling fault status reg 3
[ 97.713159] DMAR: [DMA Read NO_PASID] Request device [00:02.0] fault addr 0x8e0f7000 [fault reason 0x05] PTE Write access is not set
[ 97.713277] DMAR: DRHD: handling fault status reg 3
[ 97.713367] DMAR: [DMA Read NO_PASID] Request device [00:02.0] fault addr 0x8e0f7000 [fault reason 0x05] PTE Write access is not set
[ 97.713532] DMAR: DRHD: handling fault status reg 3
[ 97.713624] DMAR: [DMA Read NO_PASID] Request device [00:02.0] fault addr 0x8e0f7000 [fault reason 0x05] PTE Write access is not set
[ 97.713832] DMAR: DRHD: handling fault status reg 3[/FONT]
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