Public bug reported:
On my Acer laptop, 82801H Intel audio chipset, I used to have no problem
recording on Audacity through my Alesis USB mixer. The mixer needed NO
software / drivers, it just worked.
After an ubuntu kernel update, the mixer won't be recognized in
Audacity. lsusb shows "Texas Instruments" when it's plugged in. If I cd
/proc/asound/ and then cat cards, I get:
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0xf0500000 irq 22
aplay -l gives :
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: ALC268 Digital [ALC268 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 6: Si3054 Modem [Si3054 Modem]
Subdevices: 1/1
Subdevice #0: subdevice #0
but no mention of this mixing board being plugged in. I think it used to be
seen by the computer as a separate sound card. All I know is I've been all over
the internet the past few days trying to get it working again. So far ...
* Audacity's been re-installed
* Newest alsa driver, lib, utils, and firmware loaders have been installed
* Various kernels have been loaded, so maybe I just haven't found the right
one yet?
I think the problem resides in the snd-usb-audio module, some part of
ALSA. Ideally, if I understand right, it is inserted into the current
kernel (which can manually be done by sudo modprobe snd-usb-audio ?). I
have an older laptop with the 2.6.22-14.37 kernel, which through recent
Ubuntu updates got bumped up to 2.6.22-14.38 on my new laptop used for
recording, initiating all this hullabaloo.
How do I get the computer to recognize the usb mixer again?
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
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ALSA USB codec doesn't load in updated kernel
https://bugs.launchpad.net/bugs/236846
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