Unknown error after upgrade . Infinitely sounds one sequence...

[slinzex]

After yesterday's upgrade from 10.04 to 10.10 I've noticed that several times my laptop (Dell Vostro 1720) stills not responding.
If I was listening music, or speaking at skype, in random moment, it stacks infinitely playing one sequence of last sound.
For example is now playing one song : "I'm gonna see you after rain..." . So in one moment, the system is playing the last sequence of words " you after , you after , you after , you after ....... infinitely. I can't do anything ( ctrl+alt+F3, ctrl+alt+del.. ) .
I have to press ON button for 5sec to hard shutdown .

This happened more than 8 times after upgrade yesterday night.


uname -a :
Linux watt-laptop 2.6.32-27-generic #49-Ubuntu SMP Wed Dec 1 23:52:12 UTC 2010 i686 GNU/Linux


How can I detect what happens?

[dino99]

watch the log files: system admin logviewer, and .xsession-errors (/home, ctrl+h to unhide it)

[slinzex]

could you suggest witch ones I have to look ?

for example is this normal?
Apr 27 19:10:30 xxxx-laptop pulseaudio[1830]: ratelimit.c: 21 events suppressed

[kostkon]

could you suggest witch ones I have to look ?

for example is this normal?
Apr 27 19:10:30 xxxx-laptop pulseaudio[1830]: ratelimit.c: 21 events suppressed
Yes, that's a warning from pulseaudio; nothing serious.

[slinzex]

I didn't found any solution for this issue .
I know that it happens randomly. Not depending on what I'm watching, listening, doing...

How to detect what cause the problem?
In which log file I have to look?