Re: [linux-audio-user] Tascam US-122, Laptop and Keyboard

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To: A list for linux audio users <linux-audio-user@...>
Date: Wednesday, March 23, 2005 - 3:23 pm

On Tue, 2005-03-22 at 10:08 -0500, Spencer Russell wrote:

Nope, keyboard lockups happen here too. And others have reported the
same, for me it's when I unplug my ua-25 so it's not card specific.

> On Wed, Mar 23, 2005 at 02:32:22AM +0000, Steve Fosdick wrote:

See http://lalists.stanford.edu/lau/2005/03/0688.html which has gone
ignored on both this list and the jack devel list.

> > I have tried kernels 2.6.10, 2.6.11, 2.6.11.4 and 2.6.11.5. The 2.6.11

I've tried from 2.6.8.1 up to 2.6.12.rcX, no love.

I also suspected IRQ issues, and digging through kernel-parameters.txt
brought me this boot option: acpi_irq_balance

Adding this to my grub.conf resulted in my usb bus no longer being
shared with my graphics adapter and about 5 other things.

Unfortunately this change in IRQ assignment seems to have zero effect.
I'm not sure what's to blame for the "delay of XXX.XXX usecs" messages,
however I know that more USB users than you are troubled by this. My
intuitively ordered list of suspects is:

1) kernel
2) alsa-drivers
3) jackd

and of course superseding all is my flaky hardware and software setup :)
however as I find more people with these issues I'm less likely to blame
myself. The ua-25 works flawlessly in OS X btw.

-good luck

--
Ryan Gallagher

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Messages in current thread:
[linux-audio-user] Tascam US-122, Laptop and Keyboard, Steve Fosdick, (Wed Mar 23, 2:32 am)
Re: [linux-audio-user] Tascam US-122, Laptop and Keyboard, Arnold Krille, (Wed Mar 23, 10:21 am)
Re: [linux-audio-user] Tascam US-122, Laptop and Keyboard, Spencer Russell, (Wed Mar 23, 3:02 am)
Re: [linux-audio-user] Tascam US-122, Laptop and Keyboard, Steve Fosdick, (Thu Mar 24, 1:40 am)
Re: [linux-audio-user] Tascam US-122, Laptop and Keyboard, Ryan Gallagher, (Wed Mar 23, 3:23 pm)