Hardy: totem videos slow and no or choppy sound when skype running

[H.S.]

Hello,

On a fully updated Hardy machine, Ubuntu 8.04, (upgraded from Gutsy), if
a video is played using Totem (an avi file captured using a digital
camera), the video is very slow and sound is either no there or is very
choppy when skype is running.

When skype is not running, however, the video plays fine in Totem.

I have listed some of the relevant packages in the PS below.

I have found some posts online which mention a problem with pulse audio,
but those messages are some months old and I am sure if those problem
still remain in Hardy.

Any idea what I should do to debug this issue? Anyone else having a
similar problem?

Thanks.

PS:

~$ dpkg -l *totem*
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-f/Unpacked/Failed-cfg/Half-inst/t-aWait/T-pend
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err:
uppercase=bad)
||/ Name                               Version
  Description
+++-==================================-==================================-====================================================================================
ii  libtotem-plparser10                2.22.3-0ubuntu2
ii  libtotem-plparser7                 2.20.0-0ubuntu3
ii  totem                              2.22.1-0ubuntu2
ii  totem-common                       2.22.1-0ubuntu2
ii  totem-gstreamer                    2.22.1-0ubuntu2
ii  totem-mozilla                      2.22.1-0ubuntu2
ii  totem-plugins                      2.22.1-0ubuntu2
ii  totem-plugins-extra                2.22.1-0ubuntu2
un  totem-xine                         <none>
un  totem-xine-firefox-plugin          <none>

$ dpkg -l *pulse*
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-f/Unpacked/Failed-cfg/Half-inst/t-aWait/T-pend
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err:
uppercase=bad)
||/ Name                               Version
  Description
+++-==================================-==================================-====================================================================================
ii  gstreamer0.10-pulseaudio           0.9.7-2
un  libao-pulse                        <none>
un  libgstreamer-plugins-pulse0.10-0   <none>
ii  libpulse-browse0                   0.9.10-1ubuntu1
ii  libpulse0                          0.9.10-1ubuntu1
ii  libpulsecore5                      0.9.10-1ubuntu1
un  libsdl1.2debian-pulseaudio         <none>
ii  pulseaudio                         0.9.10-1ubuntu1
ii  pulseaudio-esound-compat           0.9.10-1ubuntu1
ii  pulseaudio-module-gconf            0.9.10-1ubuntu1
ii  pulseaudio-module-hal              0.9.10-1ubuntu1
un  pulseaudio-module-jack             <none>
un  pulseaudio-module-lirc             <none>
ii  pulseaudio-module-x11              0.9.10-1ubuntu1
un  pulseaudio-module-zeroconf         <none>
ii  pulseaudio-utils                   0.9.10-1ubuntu1

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