I've tested Dave's branch (above) and confirm that the audio works with
the drivers configured either as modules. (It also works with the
drivers compiled into the kernel).
The LT kernel works when build with the drivers are built-in (set to 'y'
in .config), but not when configured as modules. When configured as
modules, I get the following output at boot time:
* Starting restore sound card(s') mixer state(s)
[fail]
Then, if I check for pcm files as Dave suggested, there are none:
root@linaro-ubuntu-desktop:~# ls /dev/snd/pcm*
ls: cannot access /dev/snd/pcm*: No such file or directory
And finally, when I try to play a sound, I get the following error
output:
root@linaro-ubuntu-desktop:~# ogg123
/usr/share/sounds/gnome/default/alerts/bark.ogg
Audio Device: Advanced Linux Sound Architecture (ALSA) output
Playing: /usr/share/sounds/gnome/default/alerts/bark.ogg
Ogg Vorbis stream: 2 channel, 48000 Hz
ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.front
ALSA lib confmisc.c:768:(parse_card) cannot find card '0'
ALSA lib conf.c:4184:(_snd_config_evaluate) function snd_func_card_driver
returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4184:(_snd_config_evaluate) function snd_func_concat
returned error: No such file or directory
ALSA lib confmisc.c:1251:(snd_func_refer) error evaluating name
ALSA lib conf.c:4184:(_snd_config_evaluate) function snd_func_refer
returned error: No such file or directory
ALSA lib conf.c:4663:(snd_config_expand) Evaluate error: No such file or
directory
ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM default
ERROR: Cannot open device alsa.
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https://bugs.launchpad.net/bugs/862626
Title:
[regression] AACI driver on vexpress never gets loaded on Oneiric
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