bt87x sound from TV card [fixed]

Tamerz · Last edited by Tamerz on Mon Dec 20, 2004 6:56 am; edited 1 time in total

I'm trying to get my TV tuner card working. I have the video working fine, just can't get any sound. I have the Alsa modules emu10k1 and bt87x both compiled and set up. I can access both with the mixing programs. Sound works fine in other programs but not the TV tuner. If I set the mixer control 'TV Tuner' with amixer to 100 unmute it still stays as 0.

jschellhaass · Guru Joined: 20 Jan 2004 Posts: 341

I don't know if this will help or not. I have an older Huappuage WinTV card working. The TV card is connected to the AUX port of my SBlive! card. So all sound is routed through the Live! card. Everything is compiled as modules.

When bttv is loaded it also loads msp3400 (sound driver) and tvaudio module (plus all the bttv stuff). Do you know if these modules are loaded (or whichever sound module is required)?

jeff

Tamerz · Posted: Sat Dec 18, 2004 10:24 pm Post subject:

I have it going into my Aux port on my Audigy 2. Both the driver for my bt87x and emu10k1 are loaded when ALSA starts. I also have turned up the Aux (and even Aux2 whatever that is) inputs and still no sound. The bt87x is what sound driver my TV card uses.

jsheedy · Posted: Sun Dec 19, 2004 8:39 pm Post subject: Here are my 3 modules

Here are the 3 modules I have
bash-2.05b$ cat .config |grep BT8
CONFIG_VIDEO_BT848=m
CONFIG_SND_BT87X=m
CONFIG_SOUND_BT878=m

lsmod
bttv 145100 1
video_buf 16900 1 bttv
firmware_class 7616 1 bttv
btcx_risc 3720 1 bttv
snd_bt87x 10312 0
tuner 18660 0
tvaudio 20512 0
msp3400 21800 0

Hope that helps

Tamerz · Posted: Mon Dec 20, 2004 1:00 am Post subject: Re: Here are my 3 modules

truekaiser · l33t Joined: 05 Mar 2004 Posts: 801

is the aux line in alsa-mixer unmuted?

Tamerz · Posted: Mon Dec 20, 2004 2:50 am Post subject:

srlinuxx · l33t Joined: 22 Nov 2003 Posts: 627

jsheedy · Posted: Mon Dec 20, 2004 5:53 am Post subject: hmm?

what kernel version are you using? I am using 2.6.9-gentoo-r4

J

Tamerz · Posted: Mon Dec 20, 2004 6:55 am Post subject:

Ok, I plugged headphones directly into the output of the TV card and there is sound. So obviously it has something to do with the sound card. Thanks for the help.

jsheedy · Posted: Mon Dec 20, 2004 3:23 pm Post subject: That is good.

if you are using ALSA, there are a couple of things I would look at.

1 Kmixer would kill my alsamixergui settings at each reboot. I made sure that kmixer would not start at boot.

2 I just set the following.
amixer set Master,0 100%,100% unmute
amixer set Line,0 75%,75% mute captur
amixer set Capture,0 100%,100% captur

then as root
# alsactl store.

that did it.

BTW: Where in Illinois are you located?

Tamerz · Posted: Mon Dec 20, 2004 7:15 pm Post subject:

I don't think the Aux port works in Linux. If I plug into my Line in 3 instead the sound comes in fine. In Windows the Aux port works fine though.