Hello, 

I am using bttv 0.6.3 on a suse6.4 system with kernel 2.2.14. I also
tried bttv 0.6.4.h. The card has a bttv 878 and MSP3415D-B3 chip on it.
I am using the alsa 0.4.1d sound drivers. 
Under certain circumstances the msp3400 module seems to "destroy" my
mixer, so no sound can be played.

Usually everything works just fine. I can run xawtv and kwintv etc
without trouble. The problem came up when I wanted to use the lirc
package which required the lircd daemon to be started during bootup,
although it seems that not the daemon itself does cause the trouble.

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 (tried the
other mixer devices /dev/mixer1, ...) and no sound can be played.
Starting xawtv or kwintv in this setup, the window shows up and then the
application die with a seg fault.

The sequence of operation seems to be very important for this bug to
occur. If I do not start lircd at boottime (so no bttv, msp3400 and alsa
modules are beeing loaded at this time) everything is different: I login
using KDE, which in turn starts kmix (loading the sound driver modules),
and then finally I start lircd by hand. Again the different bttv-modules
are loaded but this time everything works just fine. I can start kwintv
or xawtv and I can play sound and listen to the TV sound and use the
remote control as well.

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. The important difference seems to be the
question if at the time msp3400.o is loaded the mixer device is already
used by another application like kmix or not. If not, then the msp
module seems to break the mixer, else everything works fine.   

Any idea what?

Thanks 
Rainer Krienke
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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
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