[LAU] Issues with JACK

[Gabbe Nord]

Hello!

I don't have hyperthreading, atleast there's nothing about that in bios.
It's a dekstop computer though.
Hmm, alarming! I do use both USB keyboard and USB mouse. My soundcard is
also USB. I do have alot of other devices plugged in aswell to my USB. Is
there any way I can fix this, other then getting "real" plugs for the USB
keyboard/mouse? Like I said, there's still a couple of devices that uses
USB even if I get rid of the mouse/keyboard.

@ Jeremy "So the xruns are not completely gone? And what if you force the
Lexicon to only use 2 ins and outs with -i2 -o2? Could you also post your
jackd command (run JACK and check with ps -eo cmd | grep [j]ackd)":
No, not completely gone. Running a project now that has ~70% cpu load
(never goes above that), and that gives atleast 4-5 pops each second. It's
not inaudible, but it's very prominent. That command told me something like
"/some/path/jackdbus auto" which I figure isn't of much help? I start jack
through Cadence, so I don't know how to extract the command from that
really =(.

I will try forcing the use of 2 ins and 2 outs!

Also, the MIDI issue turns out to atleast 1st be a problem with either the
keyboard or the actual soundcard. I suspect the keyboard, it has been
messing with me before. Gotta crack it open and take a look.... =/

Anyway, thanks for all help! I really need this working, if the pops can go
away for this I'll have a golden production environment =).

Cheers,
Gabriel


On Sun, Mar 3, 2013 at 5:01 PM, Len Ovens <len at ovenwerks.net> wrote:

>
> On Sun, March 3, 2013 6:29 am, Gabbe Nord wrote:
> > Hello Jeremy, and thank you so much for your reply!
> >
> > I disabled SpeedStep in BIOS, and it helped a little, thanks!
>
> Also hyperthreading? if you have only one cpu you may have to disable cpu1
> in the boot command line if the bios doesn't allow this.
>
> > Here's my
> > interrupts:
> >
> > zth at zth:~$ cat /proc/interrupts
> >            CPU0       CPU1       CPU2       CPU3
> >   0:         43          0          1          1   IO-APIC-edge
>  timer
> >   1:          3          0          0          0   IO-APIC-edge
>  i8042
> >   8:          1          0          0          0   IO-APIC-edge      rtc0
> >   9:          0          0          0          0   IO-APIC-fasteoi   acpi
> >  12:          4          0          0          0   IO-APIC-edge
>  i8042
> >  23:     412535      22606         20         25   IO-APIC-fasteoi
> > ehci_hcd:usb1, ehci_hcd:usb2
>
> This is not great, both USB are on the same irq. do you use a USB mouse or
> KB? That could cause problems. If you have the plugs for mouse and KB use
> them even if you need adapters. Some bios let you tell the bios not to set
> irqs for the USB or video. That might help as Linux seems to be a bit more
> inteligent at doing it. In the end usb1 and usb2 may be hardwired to the
> same irq. That probably means you can only use one of them.
>
> Laptop or desktop? in either case a USB card may help.
>
> >  41:      12871        435        437        292   PCI-MSI-edge      ahci
> >  42:          0          0          0          0   PCI-MSI-edge
> > xhci_hcd
> >  43:         67          9          3          8   PCI-MSI-edge      eth0
> >  44:          9          3          1          0   PCI-MSI-edge      mei
> >  45:         78        161         80         19   PCI-MSI-edge
> > snd_hda_intel
> >  46:      87524         15         46         18   PCI-MSI-edge
> > radeon
> >  47:         29          0          0          0   PCI-MSI-edge
> > snd_hda_intel
>
>
>
> --
> Len Ovens
> www.OvenWerks.net
>
>
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