Ubuntu studio audio problem

[Tom Adam]

> for sure the delta card is going to be nice.. i think it works quite
> well in linux, no?
> 
> 
> Yes, it used to work flawlessly on a fedora system...
> 
> 
> 
> > So I got me a Nvidea card, alas a PCI one, not a PCIE one.
> 
> In case you haven't already: You should go ahead and install the
> NVIDEA drivers for Ubuntu on x86, I suggest. You don't want to hack a
> 3D driver do you, really? No? You don't need source then. So just
> bite it and install the proprietary driver.
> 
> 
> I did. Well, it says so on the 'harware drivers' app.
> I got the recommended one.
> 
> 
> > And when I record something, it all sounds distorted.
> 
> IRQ/Realtime stuff happening, and also maybe a kernel issue. When you
> boot, do you get the -rt kernel option, setup and configured for
> audio?
> 
> Don't know... How can I check this? (up arrow on start up?)
> 
> Did you edit your /etc/security/limits.conf file .. you have to do
> this manually on Ubuntu Studio, after a fresh install .. see the
> Ubuntu-studio faq/google for this one.
> 
> Yes. Had to add nice and memlock manually.
> @audio - rtprio 99
> @audio - memlock 1533154
> @audio - nice -19
> And I'm part of the audio group...
> 
> If you didn't do this, you will get stuttering, but you may not notice
> it as well when your card is *also* producing interrupts in output.
> Note: both the rtprio setting *and* the video-card issue can be
> causing your bad results, so far, so if you fix one and not the other,
> do not panic if its not all smooth! be sure you have fixed both a
> detected video-driver issue *and* the final rtprio tweak for ubuntu,
> together!
> 
> This is what I get.. don't know what it means though.
> toad at thebigear:~$ cat /proc/interrupts
> CPU0 CPU1 CPU2 CPU3
> 0: 130 0 0 5 IO-APIC-edge timer
> 1: 0 0 0 1417 IO-APIC-edge i8042
> 4: 0 0 0 6 IO-APIC-edge
> 8: 0 0 0 1 IO-APIC-edge rtc0
> 9: 0 0 0 0 IO-APIC-fasteoi acpi
> 16: 0 0 0 1009 IO-APIC-fasteoi ehci_hcd:usb1, ICE1712
> 17: 0 0 0 82657 IO-APIC-fasteoi nvidia
> 18: 0 0 0 0 IO-APIC-fasteoi ahci
> 19: 42095 0 0 0 IO-APIC-fasteoi pata_jmicron, ohci1394
> 21: 0 0 0 28700 IO-APIC-fasteoi ata_piix, ata_piix
> 23: 35421 0 0 0 IO-APIC-fasteoi ehci_hcd:usb2
> 24: 1357537 0 0 0 HPET_MSI-edge hpet2
> 25: 0 1356716 0 0 HPET_MSI-edge hpet3
> 26: 0 0 1377060 0 HPET_MSI-edge hpet4
> 27: 0 0 0 1360751 HPET_MSI-edge hpet5
> 34: 7539 0 0 0 PCI-MSI-edge eth0
> NMI: 0 0 0 0 Non-maskable interrupts
> LOC: 279 207 135 64 Local timer interrupts
> SPU: 0 0 0 0 Spurious interrupts
> CNT: 0 0 0 0 Performance counter interrupts
> PND: 0 0 0 0 Performance pending work
> RES: 2154 3093 2550 512 Rescheduling interrupts
> CAL: 17126 20568 13816 18991 Function call interrupts
> TLB: 472 641 348 576 TLB shootdowns
> TRM: 0 0 0 0 Thermal event interrupts
> THR: 0 0 0 0 Threshold APIC interrupts
> MCE: 0 0 0 0 Machine check exceptions
> MCP: 6 6 6 6 Machine check polls
> ERR: 0
> MIS: 0
> toad at thebigear:~$ ^C
> toad at thebigear:~$
> 
> Thanks for looking ;-)
> 
> ToAd
> 
> 
> 
> 
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