On 09/20/2011 09:55 AM, Jeremy Jongepier wrote:
Thanks, well that bars out a lot of possible causes. Did you also run
*lsusb* to check what devices were connected to the USB controllers?
Maybe the keyboard and/or touchpad are connected to a USB controller too
and get in the way of the sound device.
No I didn't, will try that. He *is* using a usb keyboard and usb mouse.
I'm not sure what to look for though. Could we take my box as an
example? It's also a x-series thinkpad like his, although I realize they
could still be very different:
atte@blokhus:~$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 17ef:1000 Lenovo
Bus 002 Device 002: ID 05e3:0606 Genesys Logic, Inc. USB 2.0 Hub /
D-Link DUB-H4 USB 2.0 Hub
Bus 002 Device 003: ID 046d:c041 Logitech, Inc. G5 Laser Mouse
Bus 002 Device 004: ID 0d49:7410 Maxtor Mobile Hard Disk Drive (1TB)
Bus 004 Device 002: ID 0582:0018 Roland Corp. UA-1A
This is when I plug in my (normally unused) roland ua-1a usb soundcard,
that BTW seems to run without xruns here down to buffersize 64 (lowest
possible on that particular soundcard AFAICT) ~ 4ms latency.
How should I use this information to locate problems with the soundcard
like on my friends box?
--
Atte
http://atte.dk http://modlys.dk
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