[LAU] thinkpad t61 noise

[rosea grammostola]

On Fri, Oct 1, 2010 at 1:30 PM, Dave Phillips <dlphillips at woh.rr.com> 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