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Old 12-17-2009, 02:27 PM   #1
tomythius
LQ Newbie
 
Registered: Dec 2005
Location: Brighton, UK
Distribution: Kubuntu
Posts: 10

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Unhappy Mystery radio stream (that can't be found/killed) is locking up my soundcard


Hi all,

This morning, when I connected to the net after booting my laptop, I was treated to an uninvited radio stream, which then locked up my soundcard.

Disconnecting from the net stopped the stream, but didn't free up the soundcard. I've tried killing a whole load of processes, but can't seem to pinpoint which one is making the noise.

Weirdly, it's not a stream I've ever listened too and I've only managed to identify it as a station linked to www.1.fm - a site I'd never previously visited.

Is there any way to find out which process is running the stream? Any ideas about how I can stop it happening?

Any help would be massively appreciated!

Tom

PS, I'm running the latest Kubuntu on a Lenovo N500.
 
Old 12-17-2009, 02:48 PM   #2
Elv13
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try restarting alsa using the /etc/init.d script if you have one. Then try lsof or fuser on /dev/dsp to check is something is locking the OSS emulation.
 
Old 12-17-2009, 02:59 PM   #3
tomythius
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Registered: Dec 2005
Location: Brighton, UK
Distribution: Kubuntu
Posts: 10

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Quote:
Originally Posted by Elv13 View Post
try restarting alsa using the /etc/init.d script if you have one. Then try lsof or fuser on /dev/dsp to check is something is locking the OSS emulation.
OK, stopping alsa stops the stream, but it come back when I start it up again.

Unfortunately, both "fuser /dev/dsp" and "lsof | grep dsp" yield 0 results.

Do you have any other ideas?
 
Old 12-17-2009, 08:41 PM   #4
Shadow_7
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Registered: Feb 2003
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If it's using alsa natively, try:

$ lsof /dev/audio

/dev/dsp is the much older OSS methods, that a lot of applications avoid (the current generation of ones anyway).

Also:

$ ps -Al

Make sure that there's not some browser plugin launching xine or other things on you.
 
Old 12-18-2009, 06:04 AM   #5
tomythius
LQ Newbie
 
Registered: Dec 2005
Location: Brighton, UK
Distribution: Kubuntu
Posts: 10

Original Poster
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Exclamation

Quote:
Originally Posted by Shadow_7 View Post
If it's using alsa natively, try:

$ lsof /dev/audio

/dev/dsp is the much older OSS methods, that a lot of applications avoid (the current generation of ones anyway).

Also:

$ ps -Al

Make sure that there's not some browser plugin launching xine or other things on you.
Thanks Shadow. Unfortunately neither of these worked, but they did give me an idea...

Running netstat yielded a whole load of data, but the line with the biggest received value was:
Code:
tcp   228191      0 tom-laptop.lan:37495    64.71.184.99:8010       ESTABLISHED
64.71.184.99:8010 resolves to a shoutcast server, which lists it's URL as 1.fm - we have a winner.

Any idea how to find the process that owns this connection?
 
Old 12-18-2009, 06:11 AM   #6
tomythius
LQ Newbie
 
Registered: Dec 2005
Location: Brighton, UK
Distribution: Kubuntu
Posts: 10

Original Poster
Rep: Reputation: 1
Smile

Quote:
Originally Posted by tomythius View Post
Running netstat yielded a whole load of data, but the line with the biggest received value was:
Code:
tcp   228191      0 tom-laptop.lan:37495    64.71.184.99:8010       ESTABLISHED
64.71.184.99:8010 resolves to a shoutcast server, which lists it's URL as 1.fm - we have a winner.

Any idea how to find the process that owns this connection?
Scrap that, running sudo netstat --program gave this:
Code:
tcp   216928      0 tom-laptop.lan:46338    64.71.184.99:8010       ESTABLISHED 1897/aras-daemon.bi
Aras was something I installed to play with and had subsequently forgotten about. (Such an idiot!)

Just a bit puzzled by how it suddenly started hijacking my system, but nevermind. Thanks for all your help.
 
  


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