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

[Sampo Savolainen]

On Wed, 2007-04-18 at 11:49 -0700, 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 from my D820

v2 at mustis:~$ cat /proc/interrupts 
           CPU0       CPU1       
  0:   15528582          0    IO-APIC-edge  timer
  1:      41503          0    IO-APIC-edge  i8042
  8:          3          0    IO-APIC-edge  rtc
  9:          3          0   IO-APIC-level  acpi
 12:     402591          0    IO-APIC-edge  i8042
 14:     223652          0    IO-APIC-edge  libata
 15:     114216          0    IO-APIC-edge  libata
 50:        139          0   IO-APIC-level  ehci_hcd:usb1, uhci_hcd:usb2
 58:      49353          0   IO-APIC-level  uhci_hcd:usb3
 66:          0          0   IO-APIC-level  uhci_hcd:usb4
 74:          0          0   IO-APIC-level  uhci_hcd:usb5
 82:          1          0         PCI-MSI  eth2
 90:     640094          0         PCI-MSI  HDA Intel
169:          0          0   IO-APIC-level  i915 at pci:0000:00:02.0
177:    4260189          0   IO-APIC-level  ipw3945
193:         10          0   IO-APIC-level  ohci1394, yenta
NMI:          0          0 
LOC:   15528366   15528365 
ERR:          0
MIS:          0


  Sampo