Audio en Laptop Compaq Presario no anda con ubuntu

[momo]

gracias
probe lo que me decis pero sigue sin andar. Con pulseaudio --dump-conf me muestra lo siguiente por si te sirve de dato, yo no entiendo mucho lo que dice.

laptop:~$ pulseaudio --dump-conf
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.
### Read from configuration file: /etc/pulse/daemon.conf ###
daemonize = no
fail = yes
high-priority = no
nice-level = -11
realtime-scheduling = no
realtime-priority = 5
disallow-module-loading = no
disallow-exit = no
use-pid-file = yes
system-instance = no
no-cpu-limit = no
disable-shm = no
exit-idle-time = 20
module-idle-time = 20
scache-idle-time = 20
dl-search-path = /usr/lib/pulse-0.9/modules/
default-script-file = /etc/pulse/default.pa
load-default-script-file = yes
log-target = auto
log-level = notice
resample-method = src-linear
disable-remixing = no
disable-lfe-remixing = yes
default-sample-format = s16le
default-sample-rate = 44100
default-sample-channels = 2
default-fragments = 8
default-fragment-size-msec = 10
shm-size-bytes = 0
rlimit-fsize = -1
rlimit-data = -1
rlimit-stack = -1
rlimit-core = -1
rlimit-as = -1
rlimit-rss = -1
rlimit-nproc = -1
rlimit-nofile = 256
rlimit-memlock = -1
rlimit-locks = -1
rlimit-sigpending = -1
rlimit-msgqueue = -1
rlimit-nice = 31
rlimit-rtprio = 9
rlimit-rttime = 1000000


y pulseaudio -v

laptop:~$ pulseaudio -v
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.
I: main.c: PolicyKit refuses acquire-high-priority privilege.
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.
I: main.c: setrlimit(RLIMIT_NICE, (31, 31)) failed: Operation not permitted
I: main.c: setrlimit(RLIMIT_RTPRIO, (9, 9)) failed: Operation not permitted
I: main.c: This is PulseAudio 0.9.14
I: main.c: Page size is 4096 bytes
I: main.c: Machine ID is e449db3e63e7d846dc59a2404a1e08a3.
I: main.c: Using runtime directory /home/tita/.pulse/e449db3e63e7d846dc59a2404a1e08a3:runtime.
I: main.c: Using state directory /home/tita/.pulse.
I: main.c: Running in system mode: no
E: pid.c: Daemon already running.
E: main.c: pa_pid_file_create() failed.


Alguna idea? ya vengo dando vueltas dentro del ubuntu hace dias y la no logro nada.
Muchas gracias por la ayuda a todos
Salu2