I'm hoping I'll be able to find someone else with a similar setup that
has overcome their problems to get realtime operation, at least in one
direction, with no xruns.
Setup:
Dell M90 (intel-hda audio)
Kernel 2.6.24 RT PREMPT SMP from gentoo pro-audio feed
quadro 1500fx with nvidia driver (i'd really like to keep this driver, unless compiz works now with the nv driver)
I've
tried multiple combinations of: irqpoll noacpi noapic pci=biosirq, some
combinations help to reduce latency, but not enough to be useable
I have GNX4 Guitar interface that works as a usb device, its almost
useable with the same settings the intel-hda card skips with.
I have an Opteron with sb-live that no no latency problems, and the GNX4 works great with it.
What suggestions for Frames/Period, Sample Rate, Periods/Buffer
would people reccomend to make this useable. I really just want to be
able to mix and output audio in realtime on my laptop with its
intel-hda card, full duples with the GNX4 on it would be an added
bonus.
If anyone is willing to look over the kernel config I can send them It, didn't want to clutter the list with it now.
cat /proc/interrupts
CPU0 CPU1
0: 20489426 0 XT-PIC-XT timer
1: 14552 0 XT-PIC-XT i8042
2: 0 0 XT-PIC-XT cascade
5: 0 0 XT-PIC-XT uhci_hcd:usb4
7: 2008 0 XT-PIC-XT ipw3945
8: 2 0 XT-PIC-XT rtc
9: 2930465 0 XT-PIC-XT acpi, uhci_hcd:usb3, nvidia
10: 269 0 XT-PIC-XT uhci_hcd:usb1, ehci_hcd:usb5
11: 1627576 0 XT-PIC-XT uhci_hcd:usb2, HDA Intel
12: 16281 0 XT-PIC-XT i8042
14: 60131 0 XT-PIC-XT libata
15: 64207 0 XT-PIC-XT libata
218: 1624641 0 PCI-MSI-edge eth0
NMI: 0 0 Non-maskable interrupts
LOC: 5672972 14563710 Local timer interrupts
RES: 9766464 13228888 Rescheduling interrupts
CAL: 46404 41727 function call interrupts
TLB: 21123 35433 TLB shootdowns
TRM: 0 0 Thermal event interrupts
SPU: 0 0 Spurious interrupts
ERR: 0
MIS: 0
Thanks in advance,
Nathanael