[ubuntu karmic] no sound on netbook

[ullix]

today's updates killed the sound on my acer aspire one netbook. nothing to hear, not even some crackling

ProblemType: Bug
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ulli 1594 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0x38540000 irq 16'
   Mixer name : 'Realtek ALC268'
   Components : 'HDA:10ec0268,1025015b,00100101'
   Controls : 9
   Simple ctrls : 6
CheckboxCommand: alsa_record_playback
CheckboxTest: alsa_record_playback_external
Date: Fri Sep 25 19:37:41 2009
DistroRelease: Ubuntu 9.10
Package: alsa-base 1.0.20+dfsg-1ubuntu4
PackageArchitecture: all
ProcEnviron:
 SHELL=/bin/bash
 LANG=en_US.UTF-8
ProcVersionSignature: Ubuntu 2.6.31-10.35-generic
SourcePackage: alsa-driver
Tags: ubuntu-unr checkbox-bug
Uname: Linux 2.6.31-10-generic i686

[ullix (ullix)]

I guess this report is invalid; the culprit is mythtv-frontend. see this bug: Bug #436792