same problem, acer aspire 4530.

g...@burnedleaf:~$ pulseaudio -k
I: caps.c: Limited capabilities successfully to CAP_SYS_NICE.
I: caps.c: Dropping root privileges.
I: caps.c: Limited capabilities successfully to CAP_SYS_NICE.
N: main.c: Called SUID root and real-time and/or high-priority scheduling was 
requested in the configuration. However, we lack the necessary privileges:
N: main.c: We are not in group 'pulse-rt', PolicyKit refuse to grant us the 
requested privileges and we have no increase RLIMIT_NICE/RLIMIT_RTPRIO resource 
limits.
N: main.c: For enabling real-time/high-priority scheduling please acquire the 
appropriate PolicyKit privileges, or become a member of 'pulse-rt', or increase 
the RLIMIT_NICE/RLIMIT_RTPRIO resource limits for this user.

g...@burnedleaf:~$ cat /proc/asound/card0/codec#* | grep Codec
Codec: Realtek ALC888
Codec: Conexant ID 2c06

Alsa, pulseaudio dont work.
oss work.

-- 
[Jaunty] HDA-Intel - no sound
https://bugs.launchpad.net/bugs/316125
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