[LAU] Thinkpad R60 for Audio Update - Firewire Conflicts with Audio

Pieter Palmers pieterp at joow.be
Thu Apr 19 05:46:04 EDT 2007


Ken Dawson wrote:
> Robin Gareus wrote:
> 
> [snip]
> 
>> As for Sound: I rarely use the SD-reader (sdhci:slot0 - BTW. unloading
>> the module saves power!) so I connect a USB UA-25 to either IRQ22 or
>> IRQ23. even if it's the only device on that bus I get rare xruns on 64
>> frames/period. but a robust setup with  `jackd -R -P 70 -d alsa -d hw:1
>> -p  256 -r 48000` makes this Thinkpad a great machine for
>> stereo/binaural audio work and fun! - (recap: the Dell D820 seems
>> somewhat better suited for pro-audio, and a Vaio sz3 is similarly good,
>> but sony&linux requires a little more some devotion..)
> 
> I'm curious: where did you get information that the Dell D820 is better 
> suited?  I'm wondering if there is some info available about the IRQ 
> mapping in the D820 which can help me make a decision whether to get the 
> Dell D820 or a Lenovo T60p.

This is for my D820 and stock ubuntu feisty kernel.

            CPU0       CPU1
   0:    1020534          0   IO-APIC-edge      timer
   1:       1854          0   IO-APIC-edge      i8042
   8:         23          0   IO-APIC-edge      rtc
   9:          5          0   IO-APIC-fasteoi   acpi
  12:        115          0   IO-APIC-edge      i8042
  14:      38534          0   IO-APIC-edge      libata
  15:      28846          0   IO-APIC-edge      libata
  16:     220577          0   IO-APIC-fasteoi   nvidia
  17:       2106     102830   IO-APIC-fasteoi   ipw3945
  18:        145          0   IO-APIC-fasteoi   eth0
  19:         10          0   IO-APIC-fasteoi   ohci1394, yenta
  20:     405137          0   IO-APIC-fasteoi   uhci_hcd:usb1, ehci_hcd:usb5
  21:      35138          0   IO-APIC-fasteoi   uhci_hcd:usb2, HDA Intel
  22:          0          0   IO-APIC-fasteoi   uhci_hcd:usb3
  23:          0          0   IO-APIC-fasteoi   uhci_hcd:usb4
NMI:          0          0
LOC:    1020404    1020403
ERR:          0
MIS:          0

Pieter



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