RE: [Alsa-user] Sound on a Dell Latitude D600

[<Beb...@em...>]

Hi there,

Here is the output from /proc/asound/cards:
-------------
0 [I82801DBICH4   ]:	ICH - Intel 82801DB-ICH4
				Intel 82801DB-ICH4 at 0xf4fff800, irq 7
-------------

/proc/asound/card0/codec97#0 shows:
-------------
0-0/0: SigmaTel STAC9750/51

Capabilities		: -headphone out-
DAC resolution	: 20-bit
ADC resolution	: 20-bit
3D enhancement	: SigmaTel 3D Enhancement

Current setup
Mic gain		: +0dB [+0dB]
POP path		: pre 3D
Sim. Stereo		: off
3D enhancement	: off
Loudness		: off
Mono output		: MIX
Mic select		: Mic1
ADC/DAC loopback	: off
Extended ID		: codec=0 rev=1 AMAP DSA=0 SPDIF VRA
Extended status	: SPCV SPDIF=res VRA
PCM front DAC	: 48000Hz
PCM ADC		: 48000Hz
SPDIF Control	: Consumer PCM Category=0x2 Generation=1 Rate=48kHz
---------------

I had a look at another machine (really a VMWare virtual PC) where sound
works and realized that in codec97#0 there is no entry in the capabilities
line. Does this mean the chip is not recognized to be capable of playing
sound through any other device than headphone out?

Thanks Lars


> -----Original Message-----
> From: ae...@st... 
> [mailto:ae...@st...] On Behalf Of Clemens Ladisch
> Sent: Freitag, 29. April 2005 09:52
> To: Beb...@em...
> Cc: als...@li...
> Subject: Re: [Alsa-user] Sound on a Dell Latitude D600
> 
> Beb...@em... wrote:
> > I have a Dell Latitude D600 notebook with a Sigmatel sound 
> chip [...] 
> > and sound is actually working fine through the headphone plug but I 
> > never managed it to play through the built-in speakers. I 
> unmuted the 
> > Master volume and also switched off the external apmplifier 
> (as stated 
> > in some website I discovered).
> 
> It seems this notebook has some proprietary, undocumented 
> mechanism to switch between headphones and speakers (which is 
> unfortunately the norm for notebook hardware).
> 
> What Sigmatel codec is this? (see /proc/asound/cards)
> 
> 
> Regards,
> Clemens
>