This issue affects me too. I installed a fresh new copy, and installed
nvidia-prime. My screen and mouse freezes frequently.
# uname -a
Linux Blade 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014
x86_64 x86_64 x86_64 GNU/Linux
Geforce GT540M
# cat /etc/lsb-release
DISTRIB_ID=Ubun
Public bug reported:
no sound at all in internal mic and speakers. Other os is working fine.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: alsa-base 1.0.25+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-32.51-generic 3.2.30
Uname: Linux 3.2.0-32-generic x86_64
AlsaVersion: Advanced Linu
