[Bug 647389] [NEW] No Sound on Macbook 7, 1 on uptodate Maverick installation

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Soundcard is recocnized - but no sound is playing. All Channels are up
in alsamixer & gnome-sound-prefs. Hardware is a 13" Macbook Pro 7,1.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: alsa-base 1.0.23+dfsg-1ubuntu4
ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic x86_64
NonfreeKernelModules: nvidia wl
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: NVidia [HDA NVidia], device 0: Cirrus Analog [Cirrus Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  bb        18881 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'NVidia'/'HDA NVidia at 0xd3480000 irq 23'
   Mixer name	: 'Nvidia MCP89 HDMI'
   Components	: 'HDA:10134206,106b0d00,00100301 HDA:10de000c,10de0101,00100200'
   Controls      : 28
   Simple ctrls  : 12
CheckboxCommand: gst_pipeline_test -t 2 'audiotestsrc wave=sine freq=512 ! audioconvert ! audioresample ! gconfaudiosink'
CheckboxDescription:
 Klicken Sie auf »Testen«, um einen Ton über das automatisch erkannte Wiedergabe-Gerät abzuspielen.

 Do you hear a sound and was that sound free of any distortion, clicks or other strange noises?
CheckboxTest: playback_auto
Date: Sat Sep 25 11:41:39 2010
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Alpha amd64 (20100908)
PackageArchitecture: all
ProcEnviron:
 SHELL=/bin/bash
 LANG=de_DE.utf8
SourcePackage: alsa-driver
dmi.bios.date: 03/25/10
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP71.88Z.0039.B05.1003251322
dmi.board.name: Mac-F222BEC8
dmi.board.vendor: Apple Inc.
dmi.chassis.type: 10
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-F222BEC8
dmi.modalias: dmi:bvnAppleInc.:bvrMBP71.88Z.0039.B05.1003251322:bd03/25/10:svnAppleInc.:pnMacBookPro7,1:pvr1.0:rvnAppleInc.:rnMac-F222BEC8:rvr:cvnAppleInc.:ct10:cvrMac-F222BEC8:
dmi.product.name: MacBookPro7,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.

** Affects: linux (Ubuntu)
     Importance: Undecided
     Assignee: Luke Yelavich (themuso)
         Status: In Progress


** Tags: amd64 apport-bug audio checkbox-bug maverick
-- 
No Sound on Macbook 7,1 on uptodate Maverick installation
https://bugs.edge.launchpad.net/bugs/647389
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