[Pkg-alsa-devel] Bug#572904: Bug#572904: alsa-base: Thinkpad T61 with very low sound pressure level

Renato S. Yamane yamane at diamondcut.com.br
Sun Mar 7 22:17:28 UTC 2010


Em 07-03-2010 14:42, Elimar Riesebieter escreveu:
> I am running the verysame soundcard on a t61p with a perfect sound.
> Please try to copy attached asound.state to /var/lib/alsa (as root)
> run alsactl restore and test again.
> options snd-hda-intel model=thinkpad isn't needed,

Followed yours instructions, but the problem still happening.

E.g. <http://www.youtube.com/watch?v=PahgQUYz3L0>

On this video above, if I set volume level to 50%, is the same as a mute 
(none sound).

I checked that asound.state have this:
comment.dbmin -5850
comment.dbmax 0

-5850dB is absolutly low!
It means 1^585 times lower than a reference value!
E.g. if you have 2W, so -5850dB will be 2e-585W (we will have 584 zeros 
after comma!)

dB = 10*Log(Level1/Level2)

I tried change this value (comment.dbmin) but nothing happening.

Regards,
Renato





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