Have attached the dmesg error stream when trying to run a guest with
VFIO pass through when the 'intel_iommu,igfx=off' kernel flag is used.
** Attachment added: "DMAR errors - broken IOMMU"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1428121/+attachment/4334364/+files/DMAR%20errors.tx
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.0 kernel[0].
If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.
If the mainline kernel does not fix th
** Tags added: kernel-bug-exists-upstream
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https://bugs.launchpad.net/bugs/1428121
Title:
Intel HDMI Audio not working with IOMMU enabled
Status in linux package in Ubuntu
Think I've done all correctly, upstream has the same issues using the
kernel you linked.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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** Tags added: latest-bios-1.70
** Package changed: linux (Ubuntu) => alsa-driver (Ubuntu)
** Changed in: alsa-driver (Ubuntu)
Status: Confirmed => New
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