Intrepid Ibex Upgrade Notes: Acer 8920 - 64 bit

Sound:
For some reason the sound stopped working, after upgrade was complete (missing devices in /dev/snd) causing hda-verb to fail

Fix:
Assumptions: your sound was working in Hardy Heron via this fix:

http://jan.saell.org/blog/archives/30

Upgrade to ALSA drivers to 1.0.18
http://ubuntu-utah.ubuntuforums.org/...d.php?t=820959

reboot

Video: stopped working after upgrade (tried re-building NVidia driver but received error - not compatible with Xen kernel)

Fix:

sudo apt-get install nvidia-glx-177
sudo nvidia-xconfig
sudo reboot

Enjoy !!