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I've now tested the patch myself by patching kernel 4.10.0.21.23.
Unfortunately, it does not fix the problem.
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https://bugs.launchpad.net/bugs/1428121
Title:
Intel HDMI Audio not
Zeke Laschinski, did you test the patch yourself and confirm it fixes
the problem you are experiencing?
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Title:
Intel HDMI Audio not working
Ubuntu 17.04 with 4.10.0-21, libvirt 2.5.0, QEMU 2.8, and virt-manager 1.3.2.
Gigabyte EX58-UD3R Rev 1.6, ICH10 (00:1b.0) audio, x5675 (Westmere).
Nvidia GTX 275 for the host, GTX 1050 Ti for the VM.
Added to /etc/default/grub, updated grub, rebooted, and replaced the previous
entry each time:
I can confirm same problem with the latest mainstream 4.4.2 kernel on a fresh
install.
Same hardware as the OP except for the VGA, mine is the NVIDIA GTX 750 Ti
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Same issue with 4.2.0-27-generic, i7-4790K
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Title:
Intel HDMI Audio not working with IOMMU enabled
To manage notifications about this bug go
Glad to see this bug report isn't completely dead.
Can confirm too that the problem still exists with kernel
4.2.0-27-generic with the same motherboard as per the original bug
report.
The attached is a recent extract from dmesg outputs...I use vfio
passthrough for GFX on a Windows guest. You
** Bug watch added: Linux Kernel Bug Tracker #60769
http://bugzilla.kernel.org/show_bug.cgi?id=60769
** Also affects: alsa-driver via
http://bugzilla.kernel.org/show_bug.cgi?id=60769
Importance: Unknown
Status: Unknown
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: alsa-driver (Ubuntu)
Status: New => Confirmed
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Title:
Seeing this with 4.2.0-27-generic on Haswell 4790K
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Title:
Intel HDMI Audio not working with IOMMU enabled
To manage notifications about this
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: kernel-bug-exists-upstream
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Title:
Intel HDMI Audio not working with IOMMU enabled
To manage notifications about this bug go to:
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
** 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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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.txt
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