Gerd Knorr wrote:
>
> > What happens is that if I start lircd during bootup in a startup script,
> > the bttv-modules get loaded (bttv, i2c-old, videodev, tuner, msp3400).
> > Afterwards I am unable to use my mixer that now shows only volume bass
> > and treble controls that my mixer usually does not have for my PCI 64
> > soundcard. All other controls like line in, CD etc that are usually
> > available are missing now. I guess that what I see is the mixer of the
> > TV-card but there is no mixer available for my soundcard.
>
> Exactly. msp3400 registers a mixer device for the TV card controls.
>
> > I also tried to preload the alsa soundmodules and the bttv related
> > modules before starting lircd during bootup, but the effect is always
> > the same like described above.
>
> Also snd-mixer-oss.o?
>
> In your setup two modules want to register OSS-compatible mixer device:
> snd-mixer-oss.o for the SB and msp3400.o for the TV card. The default
> to handle this is "first come, first served", i.e. the module which is
> loaded first gets minor 0 (aka /dev/mixer), the other one minor 1
> (/dev/mixer1).
>
> The problem is that snd-mixer-oss.o can't deal with this. It allways
> wants to register minor 0 which does'nt work if msp3400 is already loaded
> and has allocated minor 0. IMHO this is a bug in ALSA.
>
> Your options are:
>
> (a) Use the kernel driver for the SB64, es1370/1 gets this right.
> (b) Use a mixer tool which uses the native ALSA interface and therefore
> does'nt need the snd-mixer-oss.o module.
> (c) make sure alsa (including snd-mixer-oss) gets loaded before msp3400.
> (d) add the insmod option "mixer=1" for msp3400 to /etc/moduled.conf.
> This tells msp3400 allways to grab minor 1 and 0 remains free for
> alsa. You might have to upgrade bttv depending on your version.
>
> Gerd
Thank you for your reply. I tried some of the options. Here are the
results:
(a) Using the kernel sound driver (es1370 for me) works, but this
driver cannot
handle .au files directly by the /dev/audio file, which is needed by
kisdn.
I use kisdn for telephony purposes and so this is not really an option
for
me.
(c) Loading the snd-mixer-oss modules before loading the msp module
does NOT
work. The effect is the same as not preloading the mixer module i.e.
you only see the mixer of the TV-card.
(d) Using the mixer=1 option to the msp3400 module does work even
with alsa.
So this was the choice fo me. I used bttv 0.6.4.h for this test.
Thanks a lot
Rainer
--
------------------------------------------------------------------
Rainer Krienke [EMAIL PROTECTED]
Universitaet Koblenz, http://www.uni-koblenz.de/~krienke
Rechenzentrum, Voice: +49 261 287 1312
Rheinau 1, 56075 Koblenz, Germany Fax: +49 261 287 1355
-------------------------------------------------------------------
--
To unsubscribe: mail [EMAIL PROTECTED] with
"unsubscribe" as the Subject.
