A lot of people seem to have trouble with their tvaudio driver, but since I haven't (yet) replaced the "AIW" portion of my AIW Radeon with a dedicated TV card (since no currently available drivers will provide me the ability to use my card's TV-in under Linux), I don't know much about the specifics.

I do know that adjusting mixers does not seem to help, and that most users who encounter this are left with the suspicion that there is some additional mixer somewhere that is responsible for the TV audio.

For all I know, maybe it's a conflict with ALSA... and that's something I can investigate, if not test.

I see that there is a tvaudio chip detected. Good. Now, looking through the kernel config (I'm using kernel 2.6.7, for what that's worth to you), I see that the sound devices for the video4linux-supported drivers (like the BT848) are not in Device Drivers=>Multimedia Devices=>Video4Linux as one might possibly expect; there are only video drivers there.

However, in Device Drivers=>Sound=>Advanced Linux Sound Architecture=>PCI devices, there is a module for "Bt87x Audio Capture" (CONFIG_SND_BT87X) which, according to the Help, one should:
Well, to record audio, you have to be able to receive the audio, so I would imagine (in my blissful innocence), that this driver might in fact be the sound input driver for those chips, not limited to "recording" as claimed.

Which I can then look up to see if that is the audio chip of your card, especially since the "Known chips" reported by the tvaudio driver
does not appear to include the sound chip that is actually on your board, which would certainly explain why you have no sound.

BRB.... off to Google for the detailed specs on the Leadtek Winfast 2000XP Expert and the tda9887 chip....

OK, that was enlightening.

Most productive-looking solution:

PCTV, bttv, ALSA thread on the Freshrpms ML:
I would tend to suggest the latter, as I'm hard pressed to believe that you would not have already tried the cable option (I always thought it was "standard", as that is what ATI told me to do to get sound when setting up my AIW under Windows, and I couldn't see any other way that one would reasonably expect sound output if there was not some physical connector between the TV card that receives the sound data and the sound card that outputs it). But if for some reason you haven't done this, you probably should.

You might also want to check your modules.conf (if kernel 2.4-series) or modprobe.conf (if kernel 2.6-series) and make sure that the tda9887 module is getting called and loaded properly. You might also want to go through the Google search for tda9887 yourself, as there's all kinds of interesting-looking hits there, such as a big kernel patch submitted in June of this year, discussions of how to preload the module and what options to use-- all kinds of stuff.

Hope there's something useful for you amongst it all.

wow;

motub thanks for the very detailed post, you gave me alot of suggestion. Here are some comments in reply:

1. I have enabled Device Drivers=>Sound=>Advanced Linux Sound Architecture=>PCI devices=>Bt87x Audio Capture (CONFIG_SND_BT87X)
Still doesnt work

2. The audio cable on my tv card has always been connect to the aux port on the sound card.

3. I have the oss enabled as a module, on my next restart I will enable it and see if it works.

You spotted alot of stuff that I missed (like the tda9887 chip). Thanks alot for your post. I will post my results later.

Thx!

hi...
maybe you haven't setup scantv yet???

but i think you should use tvtime and not xawtv... because i've had the same problem with my tv-card..
...
sorry about my english... i'm from germany..

ill try tvtime, thx