Sound broken in 3.2.0 and 3.2.1

From: Joseph Parmelee
Date: Fri Jan 13 2012 - 14:54:26 EST


Hello:

I have built standard kernels 3.2.0 and 3.2.1 and their respective modules. Both exhibit no sound with the following sound modules installed:

snd_pcm_oss
snd_mixer_oss
snd_hda_codec_realtek
snd_hda_intel
snd_hda_codec
snd_pcm
snd_timer
snd
soundcore
snd_page_alloc

Kernels 3.1.8 works as expected with the same set of modules (for 3.1.8)
installed.

What appears to be happening is that the available controls are not being
properly elucidated in 3.2.x. For example both aumix and gamix show that
the PCM control is missing; it appears normally in 3.1.x using the same set
of driver modules. This is causing the immediate problem as this control is
set to zero on bootup and cannot be accessed thereafter. Sound appears to
play normally through the alsa driver in mplayer for example, and the
internal mplayer volume control appears to work normally, but there is no
sound.

The controls elucidated differ as follows (taken from gamix) for the same
hardware (intel hda with realtek alc662 codec):

3.1.x:

1 - PCM
2 - Headphone
3 - Rear Mic
4 - Front Mic
5 - Line
6 - Auto-mute Mode
7 - Capture
8 - Capture 1
9 - Input Source
10 - Input Source 1
11 - IEC958
12 - Master


3.2.x:

1 - Master
2 - Channel Mode
3 - Front
4 - Surround
5 - Center
6 - LFE
7 - Headphone
8 - Rear Mic
9 - Line
10 - Auto-mute Mode
11 - Capture
12 - Capture 1
13 - Input Source
14 - Input Source 1
15 - IEC958


Yours,

Joseph Parmelee
Wild Bear Systems
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/