Hi, when I try to play some kind of video on my system, the video stops after a few frames and I see the following error messages in the kernel logs: [16833.381935] DMAR: DRHD: handling fault status reg 3 [16833.381942] DMAR: [DMA Read NO_PASID] Request device [00:1f.3] fault addr 0x3be8a6000 [fault reason 0x06] PTE Read access is not set [17107.957688] snd_hda_intel 0000:00:1f.3: azx_get_response timeout, switching to polling mode: last cmd=0x202f8100 [17108.969581] snd_hda_intel 0000:00:1f.3: No response from codec, disabling MSI: last cmd=0x202f8100 [17109.981609] snd_hda_intel 0000:00:1f.3: azx_get_response timeout, switching to single_cmd mode: last cmd=0x202f8100 [17110.087704] snd_hda_intel 0000:00:1f.3: Too many BDL entries: buffer=1058400, period=529200 [17110.088081] snd_hda_intel 0000:00:1f.3: Too many BDL entries: buffer=1058400, period=529200 [17110.088416] snd_hda_intel 0000:00:1f.3: Too many BDL entries: buffer=1058400, period=35280 [17110.089556] snd_hda_intel 0000:00:1f.3: Too many BDL entries: buffer=3704400, period=529200 [17110.090984] snd_hda_intel 0000:00:1f.3: Too many BDL entries: buffer=4194300, period=135300 Then audio output fails for all applications. Here is the affected device: $ lspci | grep 00:1f.3 00:1f.3 Audio device: Intel Corporation Tiger Lake-LP Smart Sound Technology Audio Controller (rev 20) that is part of this SoC: Model name: 11th Gen Intel(R) Core(TM) i5-1145G7 @ 2.60GHz on this system: System Information Manufacturer: Intel(R) Client Systems Product Name: NUC11TNHv5 Version: M11919-402 BIOS Information Vendor: Intel Corp. Version: TNTGLV57.0064.2022.0217.1533 Release Date: 02/17/2022
Created attachment 300850 [details] Full dmesg log Here is the full dmesg log
Here are kernel messages related to IOMMU: # dmesg | grep -i iommu [ 0.134036] DMAR-IR: IOAPIC id 2 under DRHD base 0xfed91000 IOMMU 3 [ 0.623471] pci 0000:00:02.0: DMAR: Skip IOMMU disabling for graphics [ 0.687487] iommu: Default domain type: Translated [ 0.687487] iommu: DMA domain TLB invalidation policy: lazy mode [ 0.711265] DMAR: IOMMU feature fl1gp_support inconsistent [ 0.711266] DMAR: IOMMU feature pgsel_inv inconsistent [ 0.711266] DMAR: IOMMU feature nwfs inconsistent [ 0.711267] DMAR: IOMMU feature dit inconsistent [ 0.711267] DMAR: IOMMU feature sc_support inconsistent [ 0.711268] DMAR: IOMMU feature dev_iotlb_support inconsistent [ 0.711411] pci 0000:00:00.0: Adding to iommu group 0 [ 0.711417] pci 0000:00:02.0: Adding to iommu group 1 [ 0.711425] pci 0000:00:06.0: Adding to iommu group 2 [ 0.711432] pci 0000:00:07.0: Adding to iommu group 3 [ 0.711439] pci 0000:00:07.2: Adding to iommu group 4 [ 0.711444] pci 0000:00:08.0: Adding to iommu group 5 [ 0.711455] pci 0000:00:0d.0: Adding to iommu group 6 [ 0.711460] pci 0000:00:0d.2: Adding to iommu group 6 [ 0.711465] pci 0000:00:0d.3: Adding to iommu group 6 [ 0.711474] pci 0000:00:14.0: Adding to iommu group 7 [ 0.711480] pci 0000:00:14.2: Adding to iommu group 7 [ 0.711485] pci 0000:00:14.3: Adding to iommu group 8 [ 0.711496] pci 0000:00:15.0: Adding to iommu group 9 [ 0.711502] pci 0000:00:15.1: Adding to iommu group 9 [ 0.711507] pci 0000:00:15.2: Adding to iommu group 9 [ 0.711515] pci 0000:00:16.0: Adding to iommu group 10 [ 0.711521] pci 0000:00:16.3: Adding to iommu group 10 [ 0.711526] pci 0000:00:17.0: Adding to iommu group 11 [ 0.711536] pci 0000:00:19.0: Adding to iommu group 12 [ 0.711541] pci 0000:00:19.1: Adding to iommu group 12 [ 0.711561] pci 0000:00:1d.0: Adding to iommu group 13 [ 0.711574] pci 0000:00:1f.0: Adding to iommu group 14 [ 0.711580] pci 0000:00:1f.3: Adding to iommu group 14 [ 0.711586] pci 0000:00:1f.4: Adding to iommu group 14 [ 0.711593] pci 0000:00:1f.5: Adding to iommu group 14 [ 0.711599] pci 0000:01:00.0: Adding to iommu group 15 [ 0.711620] pci 0000:58:00.0: Adding to iommu group 16
Are those messages: DMAR: IOMMU feature * inconsistent about "inconsistent" features something to worry about?
Also, let me add that on this system, audio output goes to an HDMI output.