<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 TRANSITIONAL//EN"> <HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; CHARSET=UTF-8"> <META NAME="GENERATOR" CONTENT="GtkHTML/4.2.2"> </HEAD> <BODY> Hi :) how can I give my sound cards high priority on Ubuntu Studio Precise? This is how it should be: <A HREF="mailto:spinymouse@avlinux">spinymouse@avlinux</A>:~$ /etc/init.d/rtirq status PID CLS RTPRIO NI PRI %CPU STAT COMMAND 384 FF 90 - 130 0.0 S irq/8-rtc0 1102 FF 85 - 125 0.0 S irq/18-hdspm 1123 FF 80 - 120 0.0 S irq/20-ICE1712 1135 FF 80 - 120 0.0 S irq/21-ICE1712 This is how it is: <A HREF="mailto:spinymouse@precise">spinymouse@precise</A>:~$ /etc/init.d/rtirq status PID CLS RTPRIO NI PRI %CPU STAT COMMAND 92 FF 90 - 130 0.0 S irq/8-rtc0 85 FF 85 - 125 0.0 S irq/18-ohci_hcd 89 FF 84 - 124 0.0 S irq/18-ohci_hcd 666 FF 83 - 123 0.0 S irq/18-snd_hdsp 1175 FF 82 - 122 0.8 S irq/18-nvidia 681 FF 80 - 120 0.0 S irq/20-snd_ice1 688 FF 80 - 120 0.0 S irq/21-snd_ice1 For more information take a look at [1]. Regards, Ralf PS: Sorry, HTML makes the terminal output easier to read and crossposting, since this issue might not be related to Ubuntu Studio only. [1] <A HREF="mailto:spinymouse@precise">spinymouse@precise</A>:~$ cat /proc/interrupts CPU0 CPU1 0: 126 152 IO-APIC-edge timer 1: 2269 28 IO-APIC-edge i8042 7: 1 0 IO-APIC-edge parport0 8: 0 1 IO-APIC-edge rtc0 9: 0 0 IO-APIC-fasteoi acpi 14: 0 0 IO-APIC-edge pata_atiixp 15: 0 0 IO-APIC-edge pata_atiixp 16: 4582994 229 IO-APIC-fasteoi ohci_hcd:usb2 17: 0 2 IO-APIC-fasteoi ohci_hcd:usb3, ohci_hcd:usb5 18: 3647 4131133 IO-APIC-fasteoi ohci_hcd:usb4, ohci_hcd:usb6, snd_hdspm, nvidia 19: 142422 2999 IO-APIC-fasteoi ehci_hcd:usb1 20: 69 86 IO-APIC-fasteoi snd_ice1712 21: 0 151 IO-APIC-fasteoi snd_ice1712 22: 80791 10460 IO-APIC-fasteoi ahci, firewire_ohci 43: 38196 38 PCI-MSI-edge eth0 NMI: 0 0 Non-maskable interrupts LOC: 45574437 45561286 Local timer interrupts SPU: 0 0 Spurious interrupts PMI: 0 0 Performance monitoring interrupts IWI: 0 0 IRQ work interrupts RES: 875583 1058458 Rescheduling interrupts CAL: 3500 3436 Function call interrupts TLB: 20222 18729 TLB shootdowns TRM: 0 0 Thermal event interrupts THR: 0 0 Threshold APIC interrupts MCE: 0 0 Machine check exceptions MCP: 152 152 Machine check polls ERR: 0 MIS: 0 <A HREF="mailto:spinymouse@precise">spinymouse@precise</A>:~$ /etc/init.d/rtirq status PID CLS RTPRIO NI PRI %CPU STAT COMMAND 92 FF 90 - 130 0.0 S irq/8-rtc0 650 FF 85 - 125 0.0 S irq/20-snd_ice1 692 FF 85 - 125 0.0 S irq/21-snd_ice1 646 FF 83 - 123 0.0 S irq/18-snd_hdsp 1172 FF 82 - 122 0.8 S irq/18-nvidia 79 FF 80 - 120 0.0 S irq/19-ehci_hcd 81 FF 80 - 120 0.3 S irq/16-ohci_hcd 83 FF 79 - 119 0.0 S irq/17-ohci_hcd 85 FF 78 - 118 0.0 S irq/18-ohci_hcd 87 FF 78 - 118 0.0 S irq/17-ohci_hcd 89 FF 77 - 117 0.0 S irq/18-ohci_hcd 91 FF 75 - 115 0.0 S irq/1-i8042 20 FF 50 - 90 0.0 S irq/9-acpi 68 FF 50 - 90 0.0 S irq/22-ahci 246 FF 50 - 90 0.0 S irq/14-pata_ati 250 FF 50 - 90 0.0 S irq/15-pata_ati 289 FF 50 - 90 0.0 S irq/22-firewire 537 FF 50 - 90 0.0 S irq/7-parport0 1014 FF 50 - 90 0.0 S irq/43-eth0 3 TS - 0 19 0.2 S ksoftirqd/0 9 TS - 0 19 0.2 S ksoftirqd/1 <A HREF="mailto:spinymouse@precise">spinymouse@precise</A>:~$ sudo gedit /etc/default/rtirq <A HREF="mailto:spinymouse@precise">spinymouse@precise</A>:~$ sudo /etc/init.d/rtirq stop <A HREF="mailto:spinymouse@precise">spinymouse@precise</A>:~$ sudo /etc/init.d/rtirq start Setting IRQ priorities: start [rtc] irq=8 pid=92 prio=90: OK. Setting IRQ priorities: start [hdspm] irq=18 pid=85 prio=85: OK. Setting IRQ priorities: start [hdspm] irq=18 pid=89 prio=84: OK. Setting IRQ priorities: start [hdspm] irq=18 pid=646 prio=83: OK. Setting IRQ priorities: start [hdspm] irq=18 pid=1172 prio=82: OK. Setting IRQ priorities: start [ICE1712] irq=21 pid=692 prio=80: OK. Setting IRQ priorities: start [ICE1712] irq=20 pid=650 prio=80: OK. Setting IRQ priorities: start [ohci_hcd] irq=16 pid=81 prio=75: OK. Setting IRQ priorities: start [ohci_hcd] irq=17 pid=83 prio=74: OK. Setting IRQ priorities: start [ohci_hcd] irq=17 pid=87 prio=73: OK. Setting IRQ priorities: start [ehci_hcd] irq=19 pid=79 prio=75: OK. Setting IRQ priorities: start [i8042] irq=1 pid=91 prio=70: OK. <A HREF="mailto:spinymouse@precise">spinymouse@precise</A>:~$ /etc/init.d/rtirq status PID CLS RTPRIO NI PRI %CPU STAT COMMAND 92 FF 90 - 130 0.0 S irq/8-rtc0 85 FF 85 - 125 0.0 S irq/18-ohci_hcd 89 FF 84 - 124 0.0 S irq/18-ohci_hcd 646 FF 83 - 123 0.0 S irq/18-snd_hdsp 1172 FF 82 - 122 0.8 S irq/18-nvidia 650 FF 80 - 120 0.0 S irq/20-snd_ice1 692 FF 80 - 120 0.0 S irq/21-snd_ice1 79 FF 75 - 115 0.0 S irq/19-ehci_hcd 81 FF 75 - 115 0.3 S irq/16-ohci_hcd 83 FF 74 - 114 0.0 S irq/17-ohci_hcd 87 FF 73 - 113 0.0 S irq/17-ohci_hcd 91 FF 70 - 110 0.0 S irq/1-i8042 20 FF 50 - 90 0.0 S irq/9-acpi 68 FF 50 - 90 0.0 S irq/22-ahci 246 FF 50 - 90 0.0 S irq/14-pata_ati 250 FF 50 - 90 0.0 S irq/15-pata_ati 289 FF 50 - 90 0.0 S irq/22-firewire 537 FF 50 - 90 0.0 S irq/7-parport0 1014 FF 50 - 90 0.0 S irq/43-eth0 3 TS - 0 19 0.2 S ksoftirqd/0 9 TS - 0 19 0.2 S ksoftirqd/1 <A HREF="mailto:spinymouse@precise">spinymouse@precise</A>:~$ sudo shutdown -r now <A HREF="mailto:spinymouse@precise">spinymouse@precise</A>:~$ /etc/init.d/rtirq status PID CLS RTPRIO NI PRI %CPU STAT COMMAND 92 FF 90 - 130 0.0 S irq/8-rtc0 85 FF 85 - 125 0.0 S irq/18-ohci_hcd 89 FF 84 - 124 0.0 S irq/18-ohci_hcd 666 FF 83 - 123 0.0 S irq/18-snd_hdsp 1175 FF 82 - 122 0.8 S irq/18-nvidia 681 FF 80 - 120 0.0 S irq/20-snd_ice1 688 FF 80 - 120 0.0 S irq/21-snd_ice1 79 FF 75 - 115 0.0 S irq/19-ehci_hcd 81 FF 75 - 115 0.1 S irq/16-ohci_hcd 83 FF 74 - 114 0.0 S irq/17-ohci_hcd 87 FF 73 - 113 0.0 S irq/17-ohci_hcd 91 FF 70 - 110 0.0 S irq/1-i8042 20 FF 50 - 90 0.0 S irq/9-acpi 68 FF 50 - 90 0.6 S irq/22-ahci 252 FF 50 - 90 0.0 S irq/14-pata_ati 253 FF 50 - 90 0.0 S irq/15-pata_ati 289 FF 50 - 90 0.0 S irq/22-firewire 545 FF 50 - 90 0.0 S irq/7-parport0 1023 FF 50 - 90 0.0 S irq/43-eth0 3 TS - 0 19 0.2 R ksoftirqd/0 9 TS - 0 19 0.2 S ksoftirqd/1 <A HREF="mailto:spinymouse@precise">spinymouse@precise</A>:~$ diff /etc/default/rtirq /media/avlinux/etc/default/rtirq <A HREF="mailto:spinymouse@precise">spinymouse@precise</A>:~$ ######################################################################## <A HREF="mailto:spinymouse@avlinux">spinymouse@avlinux</A>:~$ cat /proc/interrupts CPU0 CPU1 0: 119 1 IO-APIC-edge timer 1: 0 151 IO-APIC-edge i8042 4: 0 2 IO-APIC-edge 7: 1 0 IO-APIC-edge parport0 8: 0 1 IO-APIC-edge rtc0 9: 0 0 IO-APIC-fasteoi acpi 14: 0 0 IO-APIC-edge pata_atiixp 15: 0 0 IO-APIC-edge pata_atiixp 16: 9 9999 IO-APIC-fasteoi ohci_hcd:usb2 17: 0 2 IO-APIC-fasteoi ohci_hcd:usb3, ohci_hcd:usb5 18: 0 2 IO-APIC-fasteoi ohci_hcd:usb4, ohci_hcd:usb6, hdspm 19: 2 3236 IO-APIC-fasteoi ehci_hcd:usb1 20: 0 0 IO-APIC-fasteoi ICE1712 21: 0 0 IO-APIC-fasteoi ICE1712 22: 19 13587 IO-APIC-fasteoi ahci, firewire_ohci 43: 0 122 PCI-MSI-edge eth0 NMI: 0 0 Non-maskable interrupts LOC: 109959 109875 Local timer interrupts SPU: 0 0 Spurious interrupts PMI: 0 0 Performance monitoring interrupts IWI: 0 0 IRQ work interrupts RES: 61574 40384 Rescheduling interrupts CAL: 156 28 Function call interrupts TLB: 780 562 TLB shootdowns TRM: 0 0 Thermal event interrupts THR: 0 0 Threshold APIC interrupts MCE: 0 0 Machine check exceptions MCP: 31 31 Machine check polls ERR: 0 MIS: 0 <A HREF="mailto:spinymouse@avlinux">spinymouse@avlinux</A>:~$ /etc/init.d/rtirq status PID CLS RTPRIO NI PRI %CPU STAT COMMAND 384 FF 90 - 130 0.0 S irq/8-rtc0 1102 FF 85 - 125 0.0 S irq/18-hdspm 1123 FF 80 - 120 0.0 S irq/20-ICE1712 1135 FF 80 - 120 0.0 S irq/21-ICE1712 591 FF 75 - 115 0.0 S irq/19-ehci_hcd 602 FF 75 - 115 0.2 S irq/16-ohci_hcd 605 FF 74 - 114 0.0 S irq/17-ohci_hcd 607 FF 73 - 113 0.0 S irq/17-ohci_hcd 377 FF 70 - 110 0.0 S irq/1-i8042 97 FF 50 - 90 0.0 S irq/9-acpi 586 FF 50 - 90 0.0 S irq/14-pata_ati 587 FF 50 - 90 0.0 S irq/15-pata_ati 592 FF 50 - 90 0.1 S irq/22-ahci 604 FF 50 - 90 0.0 S irq/22-firewire 606 FF 50 - 90 0.0 S irq/18-ohci_hcd 608 FF 50 - 90 0.0 S irq/18-ohci_hcd 1030 FF 50 - 90 0.0 S irq/7-parport0 1496 FF 50 - 90 0.0 S irq/43-eth0 3 FF 1 - 41 0.1 S ksoftirqd/0 11 FF 1 - 41 0.1 S ksoftirqd/1 <A HREF="mailto:spinymouse@avlinux">spinymouse@avlinux</A>:~$ uname -a Linux avlinux 3.0.23-rt40 #1 SMP PREEMPT RT Wed Apr 11 19:20:41 CEST 2012 i686 GNU/Linux ######################################################################## <A HREF="mailto:spinymouse@precise">spinymouse@precise</A>:~$ uname -a Linux precise 3.2.0-23-lowlatency #31-Ubuntu SMP PREEMPT Wed Apr 11 02:24:03 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux <A HREF="mailto:spinymouse@precise">spinymouse@precise</A>:~$ diff /etc/X11/xorg.conf /media/avlinux/etc/X11/xorg.conf 47c47 < Driver "nvidia" --- > Driver "nv" 68,70c68,70 < Section "Extensions" < Option "Composite" "enable" < EndSection --- > #Section "Extensions" > # Option "Composite" "enable" > #EndSection </BODY> </HTML>