[asterisk-users] audio disappeared after ztdummy install

[Tzafrir Cohen]

On Sun, Mar 30, 2008 at 02:35:03PM -0400, Norman W. Franke wrote:
> All too common and largely undocumented. I had this same problem.
> 
> Installing ztdummy changes Asterisk to use it for timing of playback,  
> apparently. Removing ztdummy "fixed" the problem. To get it all to  
> work, I had to upgrade to to at least kernel 2.6.23.11 (previous  
> versions are either missing options are just broken.) 

Which previous versions have you tried?

I'll also note that the OP needs to get Zaptel working under Xen, which
is probably a different issue than your own.

> After doing  
> this, I recompiled ztdummy and it worked. Note that you need to  
> enable the various and random kernel flags to make this work,  
> generally dealing with the high-performance timer. I enabled:
> 
> HPET Timer Support
> Enhanced Real Time Clock Support
> HPET - High Precision Event Timer
> HPET Control RTC IRQ
> Allow mmap of HPET
> 
> I'm not sure if you can eliminate some of those, but this works for  
> me and is stable.

-- 
               Tzafrir Cohen
icq#16849755              jabber:tzafrir.cohen at xorcom.com
+972-50-7952406           mailto:tzafrir.cohen at xorcom.com
http://www.xorcom.com  iax:guest at local.xorcom.com/tzafrir