Re: Intel HDA with VT8251 gives high pitched noise

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At Fri, 25 Jan 2008 15:04:48 +0100,
Stefan Bellon wrote:
> 
> Stefan Bellon wrote:
> > Sound "kind of" works. That is, as long as I keep both channels of
> > "Line" and the left channel of "Mic" muted, then I can listen to sound
> > and the sound indeed does sound good. However as soon as I unmute
> > either channel of "Line" or the left channel of "Mic", I get a high
> > pitched noise on the Line Out jacket.
> 
> > I already tried putting things like module=3stack and position_fix=1
> > in the /etc/modprobe.d/alsa-base config file, but it didn't help
> > (although I didn't follow a strategy but was merely trying out the
> > options).
> 
> > Any ideas how to get rid of that high pitched noise?
> 
> > And a second question: I do not get a system beep although I have
> > CONFIG_INPUT_PCSPKR=y in the kernel config. What could be wrong here?
> 
> No ideas, anyone?

Did you try the latest ALSA driver?  The driver on 2.6.23 is fairly
old.  For example, the noise problem with AD1986A should have been
solved in the recent version.


Takashi

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