On Fri, Oct 1, 2010 at 1:56 PM, rosea grammostola <rosea.grammostola@xxxxxxxxx> wrote: > On Fri, Oct 1, 2010 at 1:30 PM, Dave Phillips <dlphillips@xxxxxxxxxx> wrote: >> rosea grammostola wrote: >>> >>> My thinkpad t61 makes a high frequency sound, pipipipipippi, not very >>> loud. Funny thing, when I stick in the usb mouse, it's gone... I only >>> have this issue when on battery. Suggestions for solution? >>> >>> >> >> >> Could be an IRQ conflict. What does 'cat /proc/interrupts' report ? >> >> What does lsusb report ? >> >> Best, >> >> dp >> >> >> >> > > When disabling usb 1, the noise is almost totally gone... That looks better. > > # cat /proc/interrupts > CPU0 CPU1 > 0: 130819 131607 IO-APIC-edge timer > 1: 998 1032 IO-APIC-edge i8042 > 8: 0 1 IO-APIC-edge rtc0 > 9: 1198 1232 IO-APIC-fasteoi acpi > 12: 53032 52926 IO-APIC-edge i8042 > 14: 5238 4891 IO-APIC-edge ata_piix > 15: 64 60 IO-APIC-edge ata_piix > 17: 100 112 IO-APIC-fasteoi firewire_ohci, HDA Intel > 19: 0 2 IO-APIC-fasteoi ehci_hcd:usb2 > 20: 79 84 IO-APIC-fasteoi > 22: 2915 2545 IO-APIC-fasteoi ehci_hcd:usb1 > 29: 590 599 PCI-MSI-edge eth0 > 30: 8114 7995 PCI-MSI-edge i915 > 31: 20779 20776 PCI-MSI-edge iwlagn > NMI: 0 0 Non-maskable interrupts > LOC: 106919 55400 Local timer interrupts > SPU: 0 0 Spurious interrupts > PMI: 0 0 Performance monitoring interrupts > PND: 0 0 Performance pending work > RES: 2262 1781 Rescheduling interrupts > CAL: 14 58 Function call interrupts > TLB: 719 860 TLB shootdowns > TRM: 0 0 Thermal event interrupts > THR: 0 0 Threshold APIC interrupts > MCE: 0 0 Machine check exceptions > MCP: 9 9 Machine check polls > ERR: 1 > MIS: 0 > > > # lsusb > Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > In the BIOS all pci devices are set to IRQ 11. Other options are numbers 1 - 11 or auto or disabled (afaik) Dunno if that setting is right. \r _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
