[asterisk-users] audio disappeared after ztdummy install

[david]

ronald ramos wrote:
> Hi,
> 
> For now i just turned off acpi. and it works now.
> just dont know what's the connection of that though
> :-)
> 
> i will try to do the things you guys suggested also
> when i get the chance, thanks for you help!
> 
> regards,
> nhadie
> 
> 
> --- Tzafrir Cohen <tzafrir.cohen at xorcom.com> wrote:
> 
>> 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
>>
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> 
> 
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This may help;
http://www.mail-archive.com/linux-acpi@vger.kernel.org/msg10707.html

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