On Mon, Aug 02, 2004 at 09:35:14AM -0400, Chris Metzler wrote:
> On Sun, 1 Aug 2004 12:12:44 -0600
> Paul E Condon <[EMAIL PROTECTED]> wrote:
> >
> > I'm trying to get sound working under Sarge using ALSA. I'm confident
> > that my cables, speakers, etc. are working because I get sound from
> > Knoppix. I've found some instructions at the alsa web site which seem
> > to include consideration of details specific to Debian. My sound card
> > is CM8738. My kernel-image is 2.4.26-1-686. I have installed the
> > alsa-modules-2.4.26-1-686. I have run alsaconf, and it found my sound
> > card and seemed to configure it. Much of what is in the instructions
> > from alsa web site seem already to have been done by debian install
> > scripts. But, I tried reexecuting update-modules even though all the
> > recommended lines were already in /etc/modutils/ and I got:
> >
> > depmod: *** Unresolved symbols in
> > /lib/modules/2.4.26-1-686/alsa/snd-pdaudiocf.o depmod: *** Unresolved
> > symbols in /lib/modules/2.4.26-1-686/alsa/snd-vx-cs.o
> >
> > This looks bad to me. Is it? What do I do about it?
>
> It's only bad if you need that module. For a CM8738, I wouldn't think
> you do. So I think you're OK.
>
> Getting soundcards to work under ALSA is *usually* a three-step
> process:
1. does the kernel see the soundcard OK (what does lspci
> -vv say about the soundcard)?
0000:00:13.0 Multimedia audio controller: C-Media Electronics Inc CM8738 (rev 10)
Subsystem: C-Media Electronics Inc CMI8738/C3DX PCI Audio Device
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping-
SERR- FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 32 (500ns min, 6000ns max)
Interrupt: pin A routed to IRQ 10
Region 0: I/O ports at ec00 [size=256]
Capabilities: <available only to root>
2. do you have the right modules
> installed (what does lsmod say)?
(output of lsmod | grep "snd" )
snd-cmipci 19044 0
snd-pcm-oss 39464 0 (unused)
snd-mixer-oss 13848 0 [snd-pcm-oss]
snd-pcm 61124 0 [snd-cmipci snd-pcm-oss]
snd-page-alloc 6392 0 [snd-pcm]
snd-opl3-lib 6596 0 [snd-cmipci]
snd-hwdep 5248 0 [snd-opl3-lib]
snd-timer 14532 0 [snd-pcm snd-opl3-lib]
gameport 1676 0 [snd-cmipci]
snd-mpu401-uart 3504 0 [snd-cmipci]
snd-rawmidi 13504 0 [snd-mpu401-uart]
snd-seq-device 4160 0 [snd-opl3-lib snd-rawmidi]
snd 33508 0 [snd-cmipci snd-pcm-oss snd-mixer-oss snd-pcm
snd-opl3-lib snd-hwdep snd-timer snd-mpu401-uart snd-rawmidi snd-seq-device]
soundcore 3940 4 [snd]
3. have you unmuted everything
> you need to in alsamixer (are Master, PCM, and CD unmuted), and are
> the relevant sliders (Master, PCM, CD and Wave) turned up to
> reasonable values? You haven't given us enough information yet.
>
Using alsamixer I have unmuted all channels and put all volume controls at maximum.
But alsamixer does not have a 'Wave' channel.
Using alsaplayer I load and play an mp3 file of some music.
I see the timer ticking off seconds on alsaplayer display, but there is no sound.
Is there some overall mute control somewhere else? Do I need to have something
special in /dev ? Should I start alsaplayer or alsamixer first? Or does it matter?
Also, alsoconf did find my sound card and it confirms that it uses cm8738.
Below is a copy of /etc/modutils/alsa-base
above snd-pcm snd-pcm-oss
# --- BEGIN: Generated by ALSACONF, do not edit. ---
# --- ALSACONF verion 1.0.5 ---
alias char-major-116 snd
alias char-major-14 soundcore
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss
options snd device_mode=0660
alias snd-card-0 snd-cmipci
alias sound-slot-0 snd-cmipci
# --- END: Generated by ALSACONF, do not edit. ---
I renamed alsa-base (above) and redid alsaconf. The new alsa-base
was identical to the above except for the line "above snd-pcm snd-pdm-oss".
It also didn't work. Same failure mode: visual display looks like it is
playing an mp3, but there is no sound.
I'm happy to oblige requests for more data.
Thanks for any suggestions.
--
Paul E Condon
[EMAIL PROTECTED]
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