Hi, Robin, On Tue, Feb 16, 2010 at 11:56:53PM +0700, Robin Atwood wrote: > On Tuesday 16 February 2010, Alan Mackenzie wrote: > > Hi, gentoo,
> > I'm trying to get sound to sound on my new Gentoo box, following the > > "Gentoo Linux ALSA Guide". Everything seems to be working fine, except > > no sound is coming out of my loudspeakers. > > I've checked the obvious things: the speakers are plugged in, switched > > on and connected to the appropriate socket on my motherboard (the light > > green one). > > I have drivers for my motherboard's sound chips compiled into my kernel, > > and they are correctly identified by alsamixer. With alsamixer I've > > unmuted various things and turned up the volume. > > madplay appears to play an mp3 file I have. Just that no actual sound > > comes out. > > One other strange thing: the titles under the "volume bars" in alsamixer > > are very different from the ones in the document: Instead of "Master / > > Headphone / Tone / Bass / Treble / 3D Contr / PCM", I've got " Master / > > Headphon / Front / Front Mi / Surround / Center / LFE / Side / Line / > > Mic / Mic Boos / S/PDIF / S/PDIF D / Beep". Why is this? In > > particular, I'm missing the "PCM" volume bar which the documentation > > says is so important to unmute. > > What am I missing here? > > Thanks in advance! > I had a similar problem with an Audigy (CA0106) card. If depends if you have > analogue or digital speakers. If they are analog the S/PDIF slider must be > *muted* or there is no sound. This is counter-intuitive since one's first > action with Alsa is to unmute everything! I believe the speakers are analogue, but I don't know for sure - there's nothing in any documentation to say so, and I couldn't find anything relevant on the net. They're a pair of Altec Lansing "expressionist BASS", black desk standing speakers that look a bit like daleks (mechanical badies from the british science fiction series Doctor Who). I've set both S/PDIF and "S/PDIF Default PCM" to muted. No joy. > HTH > -Robin -- Alan Mackenzie (Nuremberg, Germany).
