On Fri, 4 Nov 2005, Ryan Twitchell wrote:
I now believe that alsaconf only works with modules. Certainly, it needs
either dialog or whiptail, but I'm no longer convinced that it serves a
useful purpose if you build your own kernels - my main desktop machine no
longer uses any config files for alsa, other than the mixer settings.
These are the kind of things that really ought to be in the book!
I leave editorial decisions to the blfs editors, but see Alexander's
comment and link to bugzilla.
> First question: do you really have a problem ?
Yes, I can't play my mp3s!
I went ahead and built xmms, but I get the following message box when I try
to play any sound file:
Couldn't open audio
Please check that:
Your sound card is configured properly
You have the correct output plugin selected
No other program is blocking the sound card
[OK]
xmms is using the ALSA plugin (libALSA.so), but it also fails with the OSS
driver.
OK. Your config showed all the sound devices were built into the
kernel, so it shouldn't be a question of needing to load the modules
(for which, see the LFS book, section 7.4).
Try running xmms from a terminal to see the error messages, if that
doesn't help, strace xmms from a terminal (in either case use 2>filename
to capture the output).
I've had problems in the past when arts hung onto the device, so if
arts is running, kill it!
But first, please do what I suggest below.
In addition, "cat torvalds-says-linux.wav > /dev/audio" yields something that
sounds like it was captured off of a SETI satellite dish. It's mostly static,
but the actual pattern of the sound can almost be heard.
Ooh, who needs alsamixer when you can cat to /dev/audio ;-) This
description reads like a misconfigured mixer (sound source turned down,
gain turned up), or perhaps a passive speaker on a cheap soundcard (been
there, got the T-shirt), or just not enough gain in the amplifier.
I think you need to "begin at the beginning" to fix this - play the wav
file with aplay in a terminal, and in another terminal adjust alsamixer.
In the first terminal, you are looking for error messages in case it
can't play it. In alsamixer, unmute everything and turn everything up
high except the master volume (remember to cursor across to deal with
any controls that are off to the side of the window). Use the master
volume to attempt to get an adequate output level, then play with the
other controls to reduce distortion, mute unneeded inputs, etc. You can
then save the settings with 'alsactl store'.
If that doesn't get you a tolerable sound, has this machine ever
produced adequate sound with the components currently connected to it ?
If you have usable output, now is the time to look at what is upsetting
xmms.
Ken
--
das eine Mal als Tragödie, das andere Mal als Farce
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