Audio on MacBookPro7,1 doesn't work

[Mohamed Amine Ilidrissi]

Steps to reproduce:
1. Play a sound file (like the ogg files in the Examples folder).
2. Notice that it doesn't produce any sound.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.35-22-generic-pae 2.6.35-22.33
Regression: No
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.35-22.33-generic-pae 2.6.35.4
Uname: Linux 2.6.35-22-generic-pae i686
NonfreeKernelModules: wl
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: i386
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: devildante 1654 F.... pulseaudio
 /dev/snd/pcmC0D0p: devildante 1654 F...m pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'NVidia'/'HDA NVidia at 0xd3480000 irq 22'
   Mixer name : 'Nvidia MCP89 HDMI'
   Components : 'HDA:10134206,106b0d00,00100301 HDA:10de000c,10de0101,00100200'
   Controls : 28
   Simple ctrls : 12
Date: Mon Oct 11 20:58:41 2010
HibernationDevice: RESUME=UUID=718ae990-1de1-4607-8e7f-0576b9f2f358
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
MachineType: Apple Inc. MacBookPro7,1
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic-pae root=UUID=488c9b59-cb23-4868-8913-7ffb7ef88d09 ro quiet splash
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.38
RfKill:

SourcePackage: linux
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.

[Jeremy Foshee (jeremyfoshee)]

Hi Mohamed,

If you could also please test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

    [This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[Mohamed Amine Ilidrissi (ilidrissi.amine)]

I already tested the upstream kernel and didn't find any changes. Sorry for not removing the tag earlier.

[Julian Wiedmann (jwiedmann)]

Should be fixed in 2.6.37 with

f46119b73425df9d1e05c5d5e909a993d95b0218
ALSA: hda - Add model=mbp55 entry for MacBookPro 7,1