[alsa-devel] [Alsa-user] Metallic recording in cs46xx on Thinkpad T22

Takashi Iwai tiwai at suse.de
Wed Mar 12 17:59:35 CET 2008


At Wed, 12 Mar 2008 17:39:48 +0100,
Rene Herman wrote:
> 
> On 12-03-08 15:43, Takashi Iwai wrote:
> 
> > At Tue, 11 Mar 2008 23:01:39 +0100,
> > Rene Herman wrote:
> >> On 11-03-08 08:24, Gadi Oron wrote:
> >>
> >>> I am trying to record sound on an old Thinkpad T22 that uses the cs46xx 
> >>> sound driver.
> >>>
> >>> Each time you start to record you have a 10% chance of having the 
> >>> recording completely distorted and having a metallic sound. When you 
> >>> look at the waveform it looks as though there are small segments with 
> >>> sharp transitions between them, a little like if these segments were 
> >>> moved a little from their correct place.
> >> No insights, but I confirm the bug with a TerraTec DMX XFire 1024 (CS4624).
> > 
> > Hm, cs46xx driver hasn't been much changes since long time ago (around
> > year 2005).  The only big change was about some PM fixes, and I don't
> > think it's relevant...  Could you run als-info.sh to get the status?
> 
> At:
> 
> http://pastebin.ca/939784

The output seems truncated.  Could you give the generated file via
"alsactl -f somefile store", just to be sure ?


Takashi


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