Summary:Howto block annoy audio from outside

From: Jianguo Sun (
Date: Wed Jan 07 1998 - 21:40:21 CST

Thanks Joseph S D Yao, Steve McLaughlin, Aleksandar Milivoj, Brian T. Wightman,Jay Lessert, Daniel Penrod, foster@bial1.ucsd, Christopher A. Tes, Ayoub, Nicky,
Daniel Ellis, John Bradley, Marc S. Gibian all help.

My question was:

> I have been annoyed for two days with some audio sound in my machine.
> I believe the sound come from somewhere outside. Somebody drops
> a sound to my machine from another Sun box. But I don't know which
> process or file is accepting the job. Could anyone give me some
> hints so that I can block them away? My machine is Ultra I with Solaris 2.5.1.

Most answer is change the audio device ownership and permission e.g.
chown youruserid /dev/audio /dev/audioctl
chmod 600 /dev/audio /dev/audioctl

I did this way and it does not work.

Then I just rename the device filename e.g.
mv /devices/sbus@1f,0/SUNW,CS4231@d,c000000:sound,audio /devices/sbus@1f,0/SUNW,CS4231@d,c000000:sound,audio-bak

It works.

I guess some process keeps sending an audio file to the device. I still could
not find the process. Rebooting machine could be helpful but I did not do it

Again thanks for all your help.


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