[PlanetCCRMA] FC5 xruns

[Link Swanson]

On Mon, May 29, 2006 1:37 pm, Fernando Lopez-Lezcano wrote:
> On Mon, 2006-05-29 at 13:20 -0500, Link Swanson wrote:
>> I recently upgraded a my FC4 CCRMA system, which ran free of xruns, to
>> FC5, and now I get loads of xruns when running jack.
>>
>> I am running an HDSP Multiface and my motherboard sound is disabled.
>>
>> I'm a big noob so all help is welcome. Thanks
>>
>> Here is some JACK output:
>>
>> JACK compiled with System V SHM support.
>> cannot lock down memory for jackd (Cannot allocate memory)
>> loading driver ..
>> Enhanced3DNow! detected
>> SSE2 detected
>> apparent rate = 44100
>> creating alsa driver ... hw:0|hw:0|512|2|44100|0|0|nomon|swmeter|-|32bit
>> control device hw:0
>> configuring for 44100Hz, period = 512 frames, buffer = 2 periods
>> nperiods = 2 for capture
>> nperiods = 2 for playback
>> JACK: unable to mlock() port buffers: Cannot allocate memory
>> cannot use real-time scheduling (FIFO at priority 72) [for thread
>> -1229542496, from thread -1229542496] (1: Operation not permitted)
>> cannot
>> use real-time scheduling (FIFO at priority 62) [for thread
>> -1240032352, from thread -1240032352] (1: Operation not permitted)
>> 12:46:32.385 Server configuration saved to "/home/bozone/.jackdrc".
>> 12:46:32.386 Statistics reset.
>> 12:46:32.387 Client activated.
>> 12:46:32.388 Audio connection change.
>> 12:46:32.389 Audio connection graph change.
>> Enhanced3DNow! detected
>> SSE2 detected
>> cannot lock down memory for RT thread (Cannot allocate memory)
>> cannot use real-time scheduling (FIFO at priority 61) [for thread
>> -1211110496, from thread -1211110496] (1: Operation not permitted)
>> subgraph starting at qjackctl-2517 timed out (subgraph_wait_fd=11,
>> status
>> = 0, state = Triggered)
>> **** alsa_pcm: xrun of at least 2.189 msecs
>> 12:46:32.458 XRUN callback (1).
>
> Jack is not running with realtime scheduling and is not locking memory,
> you _are_ supposed to get xruns :-)
>
> How did you install the core Planet CCRMA components in fc5? (kernel,
> etc). If you installed the meta package ("yum install
> planetccrma-core-*") you should have a custom version of pam with
> realtime scheduling and memory locking enabled for non-root users - and
> the rtirq irq priority reordering startup script. See which version you
> have ("rpm -q pam"), if it does not have a "rhfc5" in the release field
> then you need to upgrade it to the Planet CCRMA version.
>
> -- Fernando
>

Thanks Nando! yum install pam did the trick.

One more question: I'm using onboard nVidia 6100 graphics and I get a
"bleedthrough" effect: my sound crackles when I open windows, menus, move
things accross the screen, etc. This occurs whether I'm using the "nv"
drivers or the commercial drivers from nVidia. Is there any way I can
relieve this? I do have another matrox PCI card I can use, but I'd rather
use the onboard.

Thanks!

>
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