thanks for your answers!!
As the computer is a netbook it has only 2 usb ports both on bus 2 and this shares the interrupt with the graphics (intel controller), is there a way to alter these interrupt settings? What are the other 3 busses "lsusb" gives me if I have only 2 physical ports both on bus 2?
Thanks again!
Martin
On Mon, Jul 27, 2009 at 9:48 AM, david <gnome@xxxxxxxxxxxxx> wrote:
Arnold Krille wrote:Well, if the OP has an Intel chipset - practically everything could be
> On Monday 27 July 2009 01:36:57 Martin Horn wrote:
>> I try to run xwax on ubuntustudio 8.10 on a Panasonic CF-T2 subnotebook
>> (1Ghz/512MB). Everytime I start real time audio apps like jack the graphic
>> gets very slow and freezes for some seconds, also the audio playback is
>> like timestretched and sounds filtered.
>> I guess it has something to do with interrupts shared by graphic and sound
>> (sound comes from a Maya44 USB sound card).
>> Can anybody give me a hint how to check or alter interrupt settings or do
>> you have any other ideas...?!
>
> Most computers have more then one usb port. And these usb ports sit on
> different irq's, I doubt it that all of them are shared with the graphics.
sharing an interrupt with the graphics. ;-)
More important to know which internal HUB the laptop's USB ports are
hooked to. My Toshiba laptop has 3 USB ports but only 2 USB internal
hubs ...
I had similar-sounding problems with my UCA202 USB sound card when I was
> How do you know which usb port uses which irq?
> Check the output of "lsusb" and "cat /proc/interrupts" to see where you audio-
> device is connected and which irq that port has.
running it as USB device #7 on a powered external 7-port USB2 hub.
Problem went away when I hooked it directly to a port on the laptop.
--
David
gnome@xxxxxxxxxxxxx
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