Geoff,
Thanks for the information. I have recieved my Delta 1010 and it
was very easy to setup in qjackctl. I just chose "hw:1 M Audio Delta
1010" for Input Device and Output Device. It also works if I choose
"hw:1,0 ICE1712 multi". Could you or someone else tell me what the
difference is?
In the Qjackctl settings box, I clicked the Realtime box and set
the priority to 79. When I restart qjackctl, it shuts down with error
messages:
In realtime mode (-R) the client timeout must be smaller than the
watchdog timeout (5000ms).
Could someone tell me what this means and if I can adjust or fix the
settings? For now, I just unclicked the Realtime box in Settings.
By changing the the Periods/Buffer to 3, and the Frames/Period to
512, I have a latency of 32 msec, and I am getting very few xruns. I am
now recording digital tracks for the first time! Thank you! I hope to
improve this latency after getting Ubuntu Studio all set up and working.
My /proc/interrupts folder now shows the Delta 1010 card:
$ cat /proc/interrupts
CPU0 CPU1
0: 1945465 0 IO-APIC-edge timer
1: 7 0 IO-APIC-edge i8042
7: 0 0 IO-APIC-edge parport0
8: 3 0 IO-APIC-edge rtc
9: 1 0 IO-APIC-level acpi
50: 2 0 IO-APIC-level uhci_hcd:usb4, ehci_hcd:usb7
58: 9892 0 PCI-MSI sky2
66: 26115 0 IO-APIC-level HDA Intel
74: 1573081 0 IO-APIC-level ICE1712
169: 69166 0 IO-APIC-level ide0, uhci_hcd:usb2
177: 105201 0 IO-APIC-level libata, libata, libata,
ohci1394, uhci_hcd:usb5
225: 0 0 IO-APIC-level ehci_hcd:usb1, uhci_hcd:usb6
233: 0 0 IO-APIC-level uhci_hcd:usb3
NMI: 0 0
LOC: 1945329 1945329
ERR: 0
MIS: 0
I assume the ICE1712 is the Delta 1010's chip. Is there a way to remap
or change its interrupt priority?
Thanks,
Dave
Geoff Beasley wrote:
> On Friday 20 April 2007 16:28:00 David Froseth wrote:
>
> ok, 8 usb's, firewire, sata, etc and dual core or dual cpu. your
system has a lot of devices but not one of them is your gpu. if you're
using the nv driver then that would explain it as it doesn't use an
intetrupt ( if i remember correctly. correct me if i'm wrong ;) )
>
>
>> I do not undersand how to read all of the info in this printout. Can
>> anybody tell me where the video card and the mobo's sound card are in
>
>
>
> your soundcard is the hda device. if you're running jack with a
period size of 2 that may account for your xruns behaviour. these chips
are notorious.
> ...change it to 3.
>
> also ensure your you are running jack with a priority of around 79. i
assume you use qjackctl ? both of these parameters are on the opening
page under setup>settings.... also use 48khz sample rate.. otherwise it
may be re-sampling on the fly.
>
>
>
>> this list? I have ordered a M-Audio Delta 1010 sound card, which is on
>> the way. But currently I am using the mobo's built in sound card.
>
>
>
> good choice. very well supported :)
>
>
>> Most of the feedback from all of you is above my head at this point.
>> Can anybody guide me through getting the video behind the sound card in
>> the IRQ? Should I wait until I get the Delta 1010 before I start all of
>> this?
>
>
>
> you have to use apic, so interupt sharing is just gonna happen. apic
is getting better tho, so with just one card you may find it will work
fine.... and get that nvidia driver back in there when you get your 1010.
>
> hth,
>
> g.
>
>
>
>
>
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