[Alsa-user] Intel8x0 sound but no volume control

[David H. <da...@pi...>]

I have an Intel motherboard with integrated Intel8x0 audio.  I recently 
upgraded from Mandrake 9.2 to Mandrake 10, which uses the 2.6.3 kernel. 
  Under Mandrake 9.2 (using the 2.4.xx kernel), I had no problems with 
this chipset.  Now that I've upgraded, I have had several problems.

First, the "Master" mixer control did not show up when using the default 
Mandrake 2.6.3 kernel, and I had no sound.  So, I installed ALSA 1.0.3 
(driver, library, utilities).  After that, I had the "Master" control 
and sound, but the mixer had NO effect on the volume.  I have used both 
amixer and alsamixer to try to change volume, to no avail.  The mixer 
allows me to adjust values, but has no effect on sound.  Audio is always 
the same volume, and cannot be controlled.

Next, I installed the 2004-03-09 CVS snapshot, just to see if that made 
any difference.  Still, no luck.

Exploring this problem further, I noticed lots of the following messages 
in the output from dmesg:

ALSA /usr/local/src/cvs/alsa-driver/pci/intel8x0.c:622: codec_read 0: 
read timeout for register 0x2c
ALSA /usr/local/src/cvs/alsa-driver/pci/intel8x0.c:622: codec_read 0: 
read timeout for register 0x30
ALSA /usr/local/src/cvs/alsa-driver/pci/intel8x0.c:622: codec_read 0: 
read timeout for register 0x2e
ALSA /usr/local/src/cvs/alsa-driver/pci/intel8x0.c:622: codec_read 0: 
read timeout for register 0x32

I also found that running "alsactl store" causes the system to freeze, 
requiring a restart.

What logs and configuration files would be useful in debugging this 
issue?  Has anyone experienced something similar?  Any help would be 
greatly appreciated!