Using a kernel module from old Linux kernel in a new Linux kernel

[Rune Svendsen]

On Wed, 2009-09-30 at 10:26 -0400, Rashkae wrote:
> Rune Svendsen wrote:
> 
> > When running alsamixer I noticed that the Master volume level had a dB
> > gain of 128 dB!:
> > 
> >         Item: Master [dB gain=128.00, 128.00]
> >         
> > I presume this means that the audio is (digitally) amplified by 128 dB
> > before being sent to my sound card to be converted to analog at line
> > level and subsequently amplified by my amplifier.
> > 
> 
> 
> Sounds like a bug, but just to make certain, try this:
> 
> Stop alsa
> 
> sudo /etc/init.d/alsa-utils stop
> 
> Delete the alsa configuration  (this is saved from current in memory
> values every time alsa-utils stops, so you must stop alsa first)
> 
> sudo rm /var/lib/alsa/asound.state
> 
> Then reboot your system, and see if the values are still funky.
> 
Here's what happens. After running:

        sudo /etc/init.d/alsa-utils stop

it seems that my sound card gets muted; the icon for the volume settings
in the panel changes to a speaker with an "x" over it, and under Sound
Preferences (right clicking this speaker icon and choosing "Sound
Preferences"), under the Output tab the volume is turned all the way
down and "Mute" is checked. Deleting the file
"/var/lib/alsa/asound.state" doesn't seem to change anything. alsamixer
shows all channels to be muted and the Master and PCM channels are set
to "00". This is the same after I reboot.

If I turn the volume all the way up and unmute the card in "Sound
Preferences" (under the Output tab), alsamixer again shows the Master
channel to have a 128 dB gain:

        Item: Master [dB gain=128.00, 128.00]
        
This doesn't change after a reboot either.