No audio output through the speakers on my Netbook; sound does output to externals

[cyberTrebuchet]

Tagline says it all. I know nothing about sound drivers. When I plug in external speakers or headphones they work fine, but the Netbook's built-in speakers aren't getting anything. They work fine through WinXP.

ProblemType: Bug
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC272 Analog [ALC272 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: thompson 1562 F.... pulseaudio
 /dev/snd/pcmC0D0p: thompson 1562 F...m pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf0440000 irq 22'
   Mixer name : 'Realtek ALC272'
   Components : 'HDA:10ec0272,1179ff6e,00100001'
   Controls : 16
   Simple ctrls : 8
Date: Tue Feb 9 00:00:44 2010
DistroRelease: Ubuntu 9.10
InstallationMedia: Ubuntu-Netbook-Remix 9.10 "Karmic Koala" - Release i386 (20091028.4)
Package: alsa-base 1.0.20+dfsg-1ubuntu5
PackageArchitecture: all
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-19.56-generic
SourcePackage: alsa-driver
Tags: ubuntu-unr
Uname: Linux 2.6.31-19-generic i686

[Daniel T Chen (crimsun)]

Please use linux-alsa-driver-modules-2.6.31-19-generic from the ubuntu-audio-dev PPA.

[cyberTrebuchet (cybertrebuchet)]

I got the following when I tried to apt-get install that package:

> Unpacking linux-alsa-driver-modules-2.6.31-19-generic (from .../linux-alsa-driver-modules-2.6.31-19-generic_2.6.31-19.201002100600_i386.deb) ...
> dpkg: error processing /var/cache/apt/archives/linux-alsa-driver-modules-2.6.31-19-generic_2.6.31-19.201002100600_i386.deb (--unpack):
> trying to overwrite '/lib/modules/2.6.31-19-generic/updates/alsa/snd-cs5535audio.ko', which is also in package linux-backports-modules-alsa-2.6.31-19-generic 0:2.6.31-19.21
> dpkg-deb: subprocess paste killed by signal (Broken pipe)
> Errors were encountered while processing:
> /var/cache/apt/archives/linux-alsa-driver-modules-2.6.31-19-generic_2.6.31-19.201002100600_i386.deb
> E: Sub-process /usr/bin/dpkg returned an error code (1)

[Daniel T Chen (crimsun)]

Please first deinstall linux-backports-modules-alsa-2.6.31-19-generic.

[cyberTrebuchet (cybertrebuchet)]

Aha! Success!

For my fellow noobs, here's what I just did:

sudo apt-get remove linux-backports-modules-alsa-2.6.31-19-generic

And then:

sudo apt-get install linux-alsa-driver-modules-2.6.31-19-generic

Then I rebooted, just for the heck of it, and now my built-in speakers
are working just fine. And now I can catch up on Family Guy heheh

[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.]