[LAU] clicks in sound when running dual core

Robert Jonsson spamatica at gmail.com
Sun Feb 8 13:36:24 EST 2009


Hi,

Interesting that it's working well for you. I tried to find out if they have
revised the design for any newer chips, without any luck.
This is with an 3800+, Delta44 soundcard, don't know what Mobo is in there..
Using stock kubuntu 8.10 kernel no additional patches.
I noticed that there's a possibility to select timing source for jack. I
will experiment a bit with that for kicks when I have time.

Regards,
Robert

2009/2/8 Cassiel <raffaele.morelli at gmail.com>

> Ok, but what about your kernel? Sound card? MOBO? you should supply more
> information.
>
> I am running debian lenny on AMD64X2 with jackd working well with alsa_seq.
>
> Did you fix midi issues with this patch (
> http://www.nabble.com/-PATCH---RT--tasklets%3A-fix-typo-in-tasklet_hi_action-tt21277388.html
> )?
>
> r
>
>
>
> 2009/2/6 Robert Jonsson <spamatica at gmail.com>
>
>> Hi folks,
>>
>> Been reinstalling my studio computer these last few weeks. Moving to 64
>> bit and dual core.. or so I thought.
>>
>> As it turns out I have found that my system is unable to run jack reliably
>> while using dual core. I use MusE as sequencer and it's especially evident
>> there but I believe I have noticed it with other applications.
>> The thing that happens is that I get random clicks in both input and
>> output. If I start the computer and add maxcpus=1 to the kernel line all
>> seems ok.
>> Thinking back I realize that I stumbled on this problem on the last
>> rebuild some years ago but ended up running single core without
>> investigating why this was.
>> I thought I would at least throw this out here now, google seems to know
>> nothing about this issue.
>> Anyone else have experienced anything similar or is my hardware faulty?
>> (AMD64X2 based)
>>
>> Regards,
>> Robert
>>
>>
>> _______________________________________________
>> Linux-audio-user mailing list
>> Linux-audio-user at lists.linuxaudio.org
>> http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
>>
>>
>
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