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Message #15435
[Bug 1223840] Re: Intel HDMI Audio not working with IOMMU enabled
** Tags added: kernel-bug-reported-upstream
** Bug watch added: Linux Kernel Bug Tracker #61471
http://bugzilla.kernel.org/show_bug.cgi?id=61471
** Also affects: linux via
http://bugzilla.kernel.org/show_bug.cgi?id=61471
Importance: Unknown
Status: Unknown
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https://bugs.launchpad.net/bugs/1223840
Title:
Intel HDMI Audio not working with IOMMU enabled
Status in The Linux Kernel:
Unknown
Status in “linux” package in Ubuntu:
Triaged
Bug description:
Using Saucy Development I noticed the HDMI audio output of the intel
graphics stops working if IOMMU is enabled via kernel boot parameter
intel_iommu=on. I need the IOMMU to pass an ATI graphics card to a
qemu virtual machine.
WORKAROUND: If the IOMMU is disabled, everything works fine.
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: linux-image-3.11.0-7-generic 3.11.0-7.13
ProcVersionSignature: Ubuntu 3.11.0-7.13-generic 3.11.0
Uname: Linux 3.11.0-7-generic x86_64
ApportVersion: 2.12.1-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: htpc 2602 F.... pulseaudio
/dev/snd/controlC0: htpc 2602 F.... pulseaudio
Date: Wed Sep 11 14:00:38 2013
InstallationDate: Installed on 2013-07-19 (54 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
IwConfig:
br0 no wireless extensions.
eth2 no wireless extensions.
lo no wireless extensions.
MachineType: ASUS All Series
MarkForUpload: True
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.11.0-7-generic root=/dev/mapper/local_system-linux ro quiet splash intel_iommu=on pcie_acs_override=downstream vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.11.0-7-generic N/A
linux-backports-modules-3.11.0-7-generic N/A
linux-firmware 1.113
RfKill:
SourcePackage: linux
UpgradeStatus: Upgraded to saucy on 2013-07-22 (50 days ago)
dmi.bios.date: 08/19/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1405
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: SABERTOOTH Z87
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1405:bd08/19/2013:svnASUS:pnAllSeries:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnSABERTOOTHZ87:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: All Series
dmi.product.version: System Version
dmi.sys.vendor: ASUS
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References