[mythtv-users] [OT] - irritating buzzing noise

[Cory Papenfuss]

 	Buzzing like that is usually ground loop issues... often from the 
TV cable connecting to the box.  Since it comes and goes, it sounds a bit 
weirder than that, but at least try disconnecting the cable to see if 
that's it.

 	To see if it is a ground loop rather than software issues, try 
connecting a headset to the audio out.  If the buzzing goes away, it's a 
ground loop between the computer and the audio device.  If it doesn't, 
it's more likely software (although it could be another loop.)

-Cory


*************************************************************************
* Cory Papenfuss							*
* Electrical Engineering candidate Ph.D. graduate student               *
* Virginia Polytechnic Institute and State University 			*
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On Thu, 4 Nov 2004, Phill Edwards wrote:

> Thsi is a bit off-topic so apologies in advance. I have just built an FC2 box to run mythtv and have everything pretty much up and running (so a tenuous link there) but in the last couple of days a really irritating buzzing has started. The machine boots up into run level 3 fine but as soon as it reaches the point where it puts up a login prompt at the end of the boot the PC speaker starts emitting this horrible buzzing sound. (I'm not booting into X windows yet until I get absolutely everything sorted). The only way I can stop it is to disconnect the speaker wire. Does anyone have any idea what this might be? I'm a bit nervous in case it's some sort of hardware problem alert or something.
>
> Regards,
> Phill