snd_hda_intel broken under Macbook 5.5

[MM]

Binary package hint: alsa-base

The latest macbooks using Intel/Nvidia HD sound will not work with this driver version 1.0.20 for 'snd_hda_intel'.

The drivers will load and the mods will be recognized but there will be no sound.

The latest macbooks need the alsa-driver version 1.0.21 installed to have sound working. This is even documented on Ubuntu's own Wiki.

I hope the Ubuntu team will update Karmic to the alsa-driver version of 1.0.21 before Karmic goes final.

THANK YOU

ProblemType: Bug
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: NVidia [HDA NVidia], device 0: HDA Generic [HDA Generic]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: NVidia [HDA NVidia], device 0: HDA Generic [HDA Generic]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: sar 2046 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'NVidia'/'HDA NVidia at 0x93480000 irq 21'
   Mixer name : 'Generic 1013 ID 4206'
   Components : 'HDA:10134206,106b4d00,00100301'
   Controls : 5
   Simple ctrls : 3
Date: Sat Oct 3 21:15:00 2009
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: wl nvidia
Package: alsa-base 1.0.20+dfsg-1ubuntu4
PackageArchitecture: all
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-11.38-generic
SourcePackage: alsa-driver
Uname: Linux 2.6.31-11-generic x86_64

[Gorka Navarrete (emrys)]

It is true, and affecting also Macbooks Pro 5,3.

You can always build it from source from wget ftp://ftp.kernel.org/pub/linux/kernel/people/tiwai/snapshot/alsa-driver-unstable-snapshot.tar.gz but that is not a good solution for most users.

Furthermore, since the elimination of the linux-restricted-modules package I haven't been able to make it work again.

[Xavi (xavidp)]

Gorka, I tried building it from source from there (following details from the documentation: https://help.ubuntu.com/community/MacBookPro5-5/Karmic#Sound , but not luck either.
No sound yet, after I upgraded to karmic beta

[MM (mmme)]

Gorka you have to make sure you unmute the sound, by default Alsa might mute the sound and then you also have to go the system preferences for sound and make sure to change the sound settings, picking a different sound option.

I don't remember which one I used in the Sound options but it was the bottom setting for Something Duplex...

[Gorka Navarrete (emrys)]

@DasFox, I know about the unmuting part. The thing was that there was no hardware to unmute.

Now, with 2.6.31.12 it works again (builging from source).

@Xavi, in https://answers.launchpad.net/ubuntu/+source/alsa-driver/+question/84686 there are instructions to follow. Make sure to replace the number of the kernel by what you are using. And that you have build-essential installed.

Any plan to take care of this before the release of Karmic?

[Vince (v-brz)]

This issue is also affecting me, also x64 bit, whether on the liveCD or actual installation.

[Tony (tonyr2k8)]

Just tried it with the 64-bit RC on my Macbook Pro 5.5 and it currently is not working.

[Daniel T Chen (crimsun)]

Also reproducible with linux-backports-modules-alsa-karmic and a reboot?

[Gorka Navarrete (emrys)]

Well, I just reinstalled the kernel and installed linux-backports-modules-alsa-karmic-generic ... Well, the sound works on reboot, which is quite surprising. I'll wait until next kernel upgrade to open the champagne though...

On the negative note, the micro is not working in Empathy, more research is needed.

Thanks for the tip.

[Luke Yelavich (themuso)]

Please make sure you ahve an output + input profile set in the hardware tab of the volume control preferences. Please also make sure you have the correct input device selected under the input tab in the same volume control preferences.

[Tony (tonyr2k8)]

Under the Mackbook Pro 5.5 the hardware tab has the following:

Internal Audio
1 Output/1 Input
Analog Stereo Duplex

This is the incorrect hardware.

[Tony (tonyr2k8)]

Forgot to add to the above. The is the only option for me under the hardware tab.

[Gorka Navarrete (emrys)]

Since Kernel .18, no more sound for me. I am stuck with .17. Nothing in the hardware tab. Building alsa unstable does not work either.

[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.]