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

Ken Dawson dawsonwu at rahul.net
Wed Apr 18 14:49:36 EDT 2007


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.

Thanks,

/ken

> 
> thinkpad x60s:
> 
>            CPU0       CPU1
>   0:  352029528          0   IO-APIC-edge      timer
>   1:    1251013          0   IO-APIC-edge      i8042
>   8:          0          0   IO-APIC-edge      rtc
>   9:   65043220          0   IO-APIC-fasteoi   acpi
>  12:   10126775          0   IO-APIC-edge      i8042
>  20:   35583442   20485440   IO-APIC-fasteoi   yenta,
> i915 at pci:0000:00:02.0, uhci_hcd:usb1
>  21:  200293604  250337407   IO-APIC-fasteoi   ohci1394, ipw3945, HDA
> Intel, uhci_hcd:usb2
>  22:   65491123          0   IO-APIC-fasteoi   sdhci:slot0, uhci_hcd:usb3
>  23:     745166    1065462   IO-APIC-fasteoi   ehci_hcd:usb5, uhci_hcd:usb4
> 218:    1670650        179   PCI-MSI-edge      eth1
> 219:     810037    3174745   PCI-MSI-edge      libata
> NMI:          0          0
> LOC:  107326912  241228138
> ERR:          0
> MIS:          0
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