This bug was fixed in the package alsa-utils - 1.0.25-1ubuntu2
---------------
alsa-utils (1.0.25-1ubuntu2) precise; urgency=low
* Adjust the ucm udev rule for Pandaboards to reflect the PandaES device
name changes, thanks to Tobin Davis <gruemas...@gmail.com> for this fix.
(LP: #880929)
-- Oliver Grawert <o...@ubuntu.com> Fri, 24 Feb 2012 18:56:28 +0100
** Changed in: alsa-utils (Ubuntu)
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/880929
Title:
alsa ucm udev rules not working on SDP4430
Status in “alsa-utils” package in Ubuntu:
Fix Released
Bug description:
Release: ubuntu-11.10-preinstalled-desktop-armel+omap4 image
alsa-utils version: 1.0.24.2-0ubuntu8.1
I am using the ARM Oneiric image for OMAP4 on Panda and Blaze.
On Panda the Audioo is correctly configured, not on SDP4430.
My understanding is that /usr/bin/alsaucm shall set the card in the udev
rules.
Indeed, by running "alsaucm listcards" on Panda or SDP4430 boards, we have
following output:
0: Panda
1: SDP4430
I suppose that when alsaucm is used without a card precised, the first
one is considered.
In file /lib/udev/rules.d/90-alsa-ucm.rules, replacing the following lines :
ATTRS{id}=="SDP4430|Panda", RUN+="/usr/bin/alsaucm set _verb HiFi"
ATTRS{id}=="SDP4430|Panda", RUN+="/usr/bin/alsaucm set _verb Record"
With:
ATTRS{id}=="SDP4430", RUN+="/usr/bin/alsaucm -c SDP4430 set _verb HiFi"
ATTRS{id}=="SDP4430", RUN+="/usr/bin/alsaucm -c SDP4430 set _verb Record"
ATTRS{id}=="Panda", RUN+="/usr/bin/alsaucm -c Panda set _verb HiFi"
ATTRS{id}=="Panda", RUN+="/usr/bin/alsaucm -c Panda set _verb Record"
... fixes the issue.
With that rules audio is OK on both Panda and SDP4430.
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