On Tue, 2008-01-22 at 19:36 +0100, Florent Berthaut wrote: > Fernando Lopez-Lezcano a écrit : > > On Tue, 2008-01-22 at 13:29 +0100, hitmuri@xxxxxxxxxx wrote: > > > > > Thanks for answering (maybe i could have asked on the linuxmao.org forum > > > too ;) ) . > > > > > > I tried to change the rtirq script but it doesn't seem to make any > > > difference. But while looking at the rt priorities, i noticed that the > > > highest priority for usb was given to the irq 16 and cat /proc/interrupts > > > tells me that on irq 16 there's uhci_hcd:usb3 and NVIDIA !!! > > > When i plug my usb soundcard , it's always on irq 20. > > > So it looks like the highest priority is given to the graphics card . > > > > > > > Because it shares the interrupt with the usb controller which may have > > an audio card attached... > > > > What do you see in "cat /proc/interrupts" for other interrupts? Do you > > perhaps have another usb controller that does not share an interrupt > > with the graphics controller? > > > > > cat /proc/interrupts gives me this : > CPU0 CPU1 > 0: 89731 89923 IO-APIC-edge timer > 1: 151 113 IO-APIC-edge i8042 > 8: 0 0 IO-APIC-edge rtc0 > 9: 12 11 IO-APIC-fasteoi acpi > 12: 42277 41891 IO-APIC-edge i8042 > 14: 7056 7085 IO-APIC-edge libata > 15: 1376 2002 IO-APIC-edge libata > 16: 11532 11641 IO-APIC-fasteoi uhci_hcd:usb3, nvidia > 18: 0 0 IO-APIC-fasteoi yenta > 19: 18782 18903 IO-APIC-fasteoi ehci_hcd:usb1, > uhci_hcd:usb7 > 20: 8615 8284 IO-APIC-fasteoi ehci_hcd:usb2, > uhci_hcd:usb5 > 21: 1 2 IO-APIC-fasteoi uhci_hcd:usb4, ohci1394 > 22: 0 0 IO-APIC-fasteoi uhci_hcd:usb6 > 23: 0 0 IO-APIC-fasteoi sdhci:slot0 > 220: 18041 18081 PCI-MSI-edge eth0 > NMI: 0 0 > LOC: 92078 94169 > ERR: 0 > MIS: 0 > > > Actually the usb controller on which my soundcard is (IRQ 20) isn"t > shared with the graphics controller. > So i tried to set the priorities of the other irq so that the usb > controller with my soundcard gets the highest priority > > I get this with /etc/init.d/rtirq status : > 1047 FF 95 - 135 0.0 S< IRQ-8 rtc0 > 417 FF 88 - 128 0.6 S< IRQ-20 ehci_hcd:usb2, > uhci_hcd:usb5 > 425 FF 87 - 127 0.0 S< IRQ-21 uhci_hcd:usb4, > ohci1394 > 426 FF 86 - 126 0.0 S< IRQ-22 uhci_hcd:usb6 > 5 FF 50 - 90 0.0 S< softirq-high/0 > 6 FF 50 - 90 0.1 S< softirq-timer/0 > 7 FF 50 - 90 0.0 S< softirq-net-tx/ > 8 FF 50 - 90 0.0 S< softirq-net-rx/ > 9 FF 50 - 90 0.0 S< softirq-block/0 > 10 FF 50 - 90 0.3 S< softirq-tasklet > 11 FF 50 - 90 0.0 S< softirq-sched/0 > 12 FF 50 - 90 0.0 S< softirq-hrtimer > 13 FF 50 - 90 0.0 S< softirq-rcu/0 > 18 FF 50 - 90 0.0 S< softirq-high/1 > 19 FF 50 - 90 0.0 S< softirq-timer/1 > 20 FF 50 - 90 0.0 S< softirq-net-tx/ > 21 FF 50 - 90 0.0 S< softirq-net-rx/ > 22 FF 50 - 90 0.0 S< softirq-block/1 > 23 FF 50 - 90 0.0 S< softirq-tasklet > 24 FF 50 - 90 0.0 S< softirq-sched/1 > 25 FF 50 - 90 0.0 S< softirq-hrtimer > 26 FF 50 - 90 0.0 S< softirq-rcu/1 > 78 FF 50 - 90 0.0 S< IRQ-9 acpi > 388 FF 50 - 90 0.0 S< IRQ-18 yenta > 394 FF 50 - 90 0.1 S< IRQ-12 i8042 > 395 FF 50 - 90 0.0 S< IRQ-1 i8042 > 454 FF 50 - 90 0.1 S< IRQ-14 libata > 455 FF 50 - 90 0.0 S< IRQ-15 libata > 1032 FF 50 - 90 0.3 S< IRQ-220 PCI-MSI-edge eth0 > 1093 FF 50 - 90 0.0 S< IRQ-23 sdhci:slot0 > 416 FF 35 - 75 0.1 S< IRQ-19 ehci_hcd:usb1, > uhci_hcd:usb7 > 424 FF 35 - 75 0.3 S< IRQ-16 uhci_hcd:usb3, nvidia > > But it doesn't make any changes, still xruns. A more basic question... what parameters are you using when you start jackd? -- Fernando _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
