[SOLVED] KDE 10.0 update messed up my sound. How to fix it

[GreyGeek]

When I installed Kubuntu 12.04 on this Acer Aspire V3-771G last June I found out that Pulseaudio didn't work well with the sound chip so I removed enough of Pulseaudio to disable it but not the libs which wanted to take my desktop with them, and installed alsa. I used the following commands:

sudo apt-get purge pulseaudio gstreamer0.10-pulseaudio
sudo apt-get install alsa-base alsa-tools alsa-tools-gui alsa-utils alsa-oss 
sudo apt-get install linux-sound-base alsamixergui gnome-alsamixer alltray
sudo reboot

After the reboot my KMixer had all the sound controls in it that are shown with alsamixer, instead of just two pulseaudio "devices", and my Dolby 5.1 sound worked well again.

Well, the KDE 10.0 update reinstalled Pulsaudio again and the same old problems returned. So, I repeated the command sequences shown above and now all is well in the garden.