<p><br>
>> Something wild is merged in his system. It has a wrong "Master"<br>
>> control without suffix. Also a strange "Pre-Amp" control is found<br>
>> there, too. The string doesn't fix in kernel or alsa-lib codes at<br>
>> all.</p>
<p>> The softvol master volume must have been from a try > with asound.rc config, but it didn't help.<br>
> Here is updated alsa-info script without asound.rc:<br>
> <a href="http://www.alsa-project.org/db/?f=ab5362501881befcdaee94e44278820d43bf92f1">http://www.alsa-project.org/db/?f=ab5362501881befcdaee94e44278820d43bf92f1</a></p>
<p>> Meanwhile, in order to test sound, I have tried<br>
> severeal live distros including: Ubuntu/Lubuntu 12.10,<br>
> Mint, Crunchbang and the result is the same: no<br>
> sound or sound that is very low with a lot of noise.</p>
<p>> Tried to update alsa to 1.0.25 following this tutorial:<br>
> <a href="http://ubuntuforums.org/showthread.php?t=1681577">http://ubuntuforums.org/showthread.php?t=1681577</a><br>
> but that also failed, resulting with "no driver to compile".</p>
<p>> Don't know what else to try, and cannot believe that<br>
> after more than 7 years with Linux now when I finally<br>
> have completely Intel based computer the sound is<br>
> making this much trouble.</p>
<p>it is not easy to remove the softvol since it is recreated by "alsactl restore" and you still have those softvol controls and a 191dB Master playback volume</p>
<p>there must be a bug in alsa lib when you have a stereo softvol master and a mono virtual master playback volume</p>
<p>when both softvol without suffix "playback volume" ,<br>
the capability of pre-amp is volume(global) but master is pvolume</p>
<p>Amixer output<br>
!!-------------</p>
<p>!!-------Mixer controls for card 0 [Intel]</p>
<p>Card hw:0 'Intel'/'HDA Intel at 0xfeaf8000 irq 43'<br>
Mixer name: 'Realtek ALC887-VD'<br>
Components: 'HDA:10ec0887,10438445,00100302'<br>
Controls : 43<br>
Simple ctrls : 22<br>
Simple mixer control 'Master',0<br>
Capabilities: pvolume pswitch pswitch-joined penum<br>
Playback channels: Front Left - Front Right<br>
Limits: Playback 0 - 255<br>
Mono:<br>
Front Left: Playback 255 [100%] [191.00dB] [on]<br>
Front Right: Playback 255 [100%] [191.00dB] [on]</p>
<p>Simple mixer control 'Pre-Amp',0<br>
Capabilities: volume penum<br>
Playback channels: Front Left - Front Right<br>
Capture channels: Front Left - Front Right<br>
Limits: 0 - 5<br>
Front Left: 5 [100%]<br>
Front Right: 5 [100%]<br></p>
<p>control.32 {<br>
comment.access 'read write'<br>
comment.type INTEGER<br>
comment.count 1<br>
comment.range '0 - 64'<br>
comment.dbmin -6400<br>
comment.dbmax 0<br>
iface MIXER<br>
name 'Master Playback Volume'<br>
value 64<br>
}</p>
<p>control.40 {<br>
comment.access 'read write user'<br>
comment.type INTEGER<br>
comment.count 2<br>
comment.range '0 - 255'<br>
comment.tlv '0000000100000008ffffec1400000014'<br>
comment.dbmin -5100<br>
comment.dbmax 0<br>
iface MIXER<br>
name 'PCM Playback Volume'<br>
value.0 255<br>
value.1 255<br>
}</p>
<p>control.42 {<br>
comment.access 'read write user'<br>
comment.type INTEGER<br>
comment.count 2<br>
comment.range '0 - 5'<br>
comment.tlv '0000000100000008fffffe0c000001f4'<br>
comment.dbmin -500<br>
comment.dbmax 2000<br>
iface MIXER<br>
name Pre-Amp<br>
value.0 5<br>
value.1 5<br>
}<br>
control.43 {<br>
comment.access 'read write user'<br>
comment.type INTEGER<br>
comment.count 2<br>
comment.range '0 - 255'<br>
comment.tlv '0000000100000008ffffec1400000014'<br>
comment.dbmin -5100<br>
comment.dbmax 0<br>
iface MIXER<br>
name Master<br>
value.0 255<br>
value.1 255</p>