[Xen Dom0 kernel] [32492FU, Conexant CX20585, Static instead of normal sound

[Todd Deshane]

Native kernel works fine, but under Xen the sounds come out as static.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: alsa-base 1.0.24+dfsg-0ubuntu3
ProcVersionSignature: Ubuntu 3.2.0-8.15-generic-pae 3.2.0
Uname: Linux 3.2.0-8-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.90-0ubuntu2
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: deshantm 2027 F.... pulseaudio
                      deshantm 5110 F.... alsamixer
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf2520000 irq 303'
   Mixer name : 'Intel IbexPeak HDMI'
   Components : 'HDA:14f15069,17aa2155,00100302 HDA:80862804,17aa21b5,00100000'
   Controls : 13
   Simple ctrls : 6
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 6QHT28WW-1.09'
   Mixer name : 'ThinkPad EC 6QHT28WW-1.09'
   Components : ''
   Controls : 1
   Simple ctrls : 1
Card29.Amixer.values:
 Simple mixer control 'Console',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Sun Jan 15 18:52:19 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha i386 (20111129.1)
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:Intel failed
Symptom_Card: Internal Audio - HDA Intel
Symptom_Jack: Green Headphone Out, Right
Symptom_Type: High background noise, or volume is too low
Title: [32492FU, Conexant CX20585, Green Headphone Out, Right] Background noise or low volume
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/26/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET45WW (1.15 )
dmi.board.name: 32492FU
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET45WW(1.15):bd04/26/2010:svnLENOVO:pn32492FU:pvrThinkPadX201:rvnLENOVO:rn32492FU:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 32492FU
dmi.product.version: ThinkPad X201
dmi.sys.vendor: LENOVO

[Todd Deshane (todd-deshane)]

The problem is specific to 32bit Dom0. 64bit Dom0 works perfectly.

Just as a quick note this bug still applies to:

3.2.0-11-generic-pae

I will continue to test as time allows. For now I can just use the 64 bit Dom0.

[Todd Deshane (deshantm)]

3.2.0-15-generic-pae, which according to the diff (http://archive.ubuntu.com/ubuntu/pool/main/l/linux/linux_3.2.0-15.24.diff.gz) includes 7a7546b377bdaa25ac77f33d9433c59f259b9688 "x86: xen: size struct xen_spinlock to always fit in arch_spinlock_t", has the same problem.

[Marcus Tomlinson (marcustomlinson)]

This release of Ubuntu is no longer receiving maintenance updates. If this is still an issue on a maintained version of Ubuntu please let us know.

[Launchpad Janitor (janitor)]

[Expired for alsa-driver (Ubuntu) because there has been no activity for 60 days.]