Intel iommu was turned on by default in mainline build v5.15.5 or jammy -generic kernel 5.15.0-12.12. This would breaks IPU6 leaving error messages:
[ 6.681241] intel-ipu6 intel-ipu: IPU driver version 1.0 [ 7.056166] DMAR: DRHD: handling fault status reg 2 [ 7.056169] DMAR: [DMA Read NO_PASID] Request device [00:05.0] fault addr 0x11b1d4000 [fault reason 0x06] PTE Read access is not set [ 7.056421] DMAR: DRHD: handling fault status reg 2 [ 7.056422] DMAR: [DMA Read NO_PASID] Request device [00:05.0] fault addr 0x3fffffff000 [fault reason 0x06] PTE Read access is not set [ 7.056456] intel-ipu6-psys intel-ipu6-psys0: pkg_dir entry count:8 [ 7.056637] intel-ipu6-psys intel-ipu6-psys0: psys probe minor: 0 [ 7.056652] DMAR: DRHD: handling fault status reg 2 [ 7.056653] DMAR: [DMA Read NO_PASID] Request device [00:05.0] fault addr 0x3fffffff000 [fault reason 0x06] PTE Read access is not set [ 7.056882] DMAR: DRHD: handling fault status reg 2 [ 8.197149] intel-ipu6-isys intel-ipu6-isys0: isys port open ready failed -16 [ 8.197157] intel-ipu6-isys intel-ipu6-isys0: Device close failure: -16 [ 10.201677] intel-ipu6-isys intel-ipu6-isys0: Device release time out -16 [ 10.240523] intel-ipu6-isys intel-ipu6-isys0: Clearing old context ... This has been filed as bug 1958004 and will be tracked separately. ** Attachment added: "dmesg.5.15.0-2017-generic.TRIBUTO.BIOS-0.2.7" https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1955383/+attachment/5554430/+files/dmesg.5.15.0-2017-generic.TRIBUTO.BIOS-0.2.7 ** Changed in: linux (Ubuntu Jammy) Importance: Undecided => High ** Changed in: linux (Ubuntu Jammy) Status: Incomplete => In Progress ** Changed in: linux (Ubuntu Jammy) Assignee: (unassigned) => You-Sheng Yang (vicamo) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1955383 Title: Support Intel IPU6 MIPI camera on Alder Lake platforms To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1955383/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
