asterisk users - Jun 2004 - Mine strangest asterisk problem ever ....

On Wed, 9 Jun 2004, Alessio Focardi wrote:
> Asterisk with one HFC isdn card, using the zaptel driver
"bristuff"
>
> All works ok, but voice coming in/out of the isdn card is out of sync,
> squelky and disrupted, UNTIL I PUT SOME LOAD TO THE PC, let say
> launching xwindows.
Alessio,

When I was having similar issues the Digium Support folks reccommended
using hdparm.  hdparm sets hard drive parameters (hence hdparm)

You can try doing different things with it, but I know that I am currently
set to level 3 rather than 5 as default with RedHat.

- Brent

Hi there,

I'm going mad at this:

Asterisk with one HFC isdn card, using the zaptel driver "bristuff"

All works ok, but voice coming in/out of the isdn card is out of sync,
squelky and disrupted, UNTIL I PUT SOME LOAD TO THE PC, let say
launching xwindows.

I noticed this:

Strong HDD activity = voice is good
HDD doing nothing = voice is not good

I suppose this could be an interrupts problem, infact if I do cat
/proc/interrupts i see that the zaphfc is generating nearly 10000 irqs
request for second (XT-PIC mode).

Maybe when the hard disk is moving the card gets some rest :)

Please, if you can, help me solve this blocking problem.

Again, tnx !




  

-- 
Best regards,
 Alessio                          mailto:afoc@interconnessioni.it

What is the actual hdparm command you are using?

On Wed, 2004-06-09 at 12:13, Brent Franks wrote:
> On Wed, 9 Jun 2004, Alessio Focardi wrote:
> 
> > Asterisk with one HFC isdn card, using the zaptel driver
"bristuff"
> >
> > All works ok, but voice coming in/out of the isdn card is out of sync,
> > squelky and disrupted, UNTIL I PUT SOME LOAD TO THE PC, let say
> > launching xwindows.
> 
> Alessio,
> 
> When I was having similar issues the Digium Support folks reccommended
> using hdparm.  hdparm sets hard drive parameters (hence hdparm)
> 
> You can try doing different things with it, but I know that I am currently
> set to level 3 rather than 5 as default with RedHat.
> 
> - Brent
> 
> 
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