[LAU] xrun problems. (Was Re: Introduction to Ardour 3.0 MIDI)

Fernando Lopez-Lezcano nando at ccrma.Stanford.EDU
Thu Mar 31 19:45:49 UTC 2011


On 03/30/2011 05:32 AM, Paul Davis wrote:
> On Wed, Mar 30, 2011 at 8:18 AM, Clemens Ladisch<clemens at ladisch.de>  wrote:
>> Paul Davis wrote:
>>> i have a 6 core athlon phenom II X6 1090T (3.6GHz) system. i get xruns
>>> "regularly". i don't know why.
>>
>> Modern power management mechanisms are quite aggressive, but increase
>> latency because of all the time needed to wake the hardware up again.
>>
>> Try disabling C1E in the BIOS, and/or try disabling CPU frequency
>> scaling.
>
> already off.
>
>> If the xruns do happen in regular time intervals, your problem might be
>
> i put "regular" in quotes to avoid the implication of "periodic". they
> are not periodic, but they happen randomly but with enough frequency
> that anyone would notice them. they occur at close to zero system
> load.
>
> i tried an RT kernel from CCRMA and it hosed the video driver (nouveau).

Which is the non-rt that works for you with nouveau?
rt-land is stuck for now in ancient 2.6.33.x kernels...

-- Fernando


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