Undetected card and audio question
- From: ra1n <ra1n09 (at) gmail.com>
- Date: Fri, 16 Feb 2007 20:53:18 +0100
On 2/16/07, CityK <CityK (at) rogers.com> wrote:
ra1n wrote:
> Hello to the list, I've got a Terratec TValue card, that uses a bt878
> chip, it doesn't automatically get recognised from the system, I need
> to specify card=33 insmod option
> here is the data:
>
> Terratec TValue
> card=33
> subsystem id I think that is 15ff:11ff
>
> This on a 2.6.20 kernel (ubuntu feisty fawn)
>
> Also I have a problem with this card regarding audio, I'm not able to
> get the snd_bt87x audio module working, it gets loaded but I cannot
> hear nothing, works fine with an audio cable direct to the sound card
> (but this gaves me problems with mythtv)
see the wiki article: http://linuxtv.org/v4lwiki/index.php/Btaudio_(bt878)
Other then the advice in that, see if you have anything muted in your
audio mixer that would pertain to the sound input for the card
Nothing seems muted, using passthru cable works fine, after reading the
article I still don't understand if the problem it's hardware or I'm missing
something, with the btaudio or snd_bt87x I'm supposed to get audio via the
onboard adc without using any passthru audio cable but only with the pci
connection? or I still need to access the onboard audio by using another
device?
Also I've found an error in my dmesg when loading the bttv module at boot:
[ 48.155336] bt878: AUDIO driver version 0.0.0 loaded
[ 48.155392] bt878: Bt878 AUDIO function found (0).
[ 48.155429] bt878_probe: card id=[0x11ff15ff], Unknown card.
[ 48.155441] bt878: probe of 0000:00:0a.1 failed with error -22
[ 48.155451] bt878: Bt878 AUDIO function found (0).
So it seems that doesn't recognize the card properly even for the audio part
even if I specify the card number in insmod option
here is the whole dmesg
ra1n (at) zero:~$ dmesg | grep bt
[ 47.666455] bttv: driver version 0.9.16 loaded
[ 47.666462] bttv: using 8 buffers with 2080k (520 pages) each for capture
[ 47.666547] bttv: Bt8xx card found (0).
[ 47.666594] bttv0: Bt878 (rev 17) at 0000:00:0a.0, irq: 16, latency: 32,
mmio: 0xe7000000
[ 47.666605] bttv0: subsystem: 15ff:11ff (UNKNOWN)
[ 47.666612] bttv0: using: Terratec TerraTValue Version Bt878
[card=33,insmod option]
[ 47.666655] bttv0: gpio: en=00000000, out=00000000 in=00ffefff [init]
[ 47.667120] bttv0: using tuner=5
[ 47.667125] bttv0: i2c: checking for MSP34xx (at) 0x80... not found
[ 47.667849] bttv0: i2c: checking for TDA9875 (at) 0xb0... not found
[ 47.668564] bttv0: i2c: checking for TDA7432 (at) 0x8a... not found
[ 47.697159] bttv0: i2c: checking for TDA9887 (at) 0x86... not found
[ 47.719540] tuner 0-0060: chip found (at) 0xc0 (bt878 #0 [sw])
[ 47.719768] tuner 0-0061: chip found (at) 0xc2 (bt878 #0 [sw])
[ 47.730040] bttv0: registered device video0
[ 47.730077] bttv0: registered device vbi0
[ 47.730106] bttv0: PLL: 28636363 => 35468950 .. ok
[ 47.752766] bttv: Bt8xx card found (1).
[ 47.752819] bttv1: Bt878 (rev 17) at 0000:00:0e.0, irq: 20, latency: 32,
mmio: 0xe6000000
[ 47.752849] bttv1: detected: Twinhan VisionPlus DVB [card=113], PCI
subsystem ID is 1822:0001
[ 47.752853] bttv1: using: Twinhan DST + clones [card=113,autodetected]
[ 47.752885] bttv1: gpio: en=00000000, out=00000000 in=00f100fe [init]
[ 47.753020] bttv1: using tuner=4
[ 47.762846] bttv1: add subdevice "dvb1"
[ 48.155336] bt878: AUDIO driver version 0.0.0 loaded
[ 48.155392] bt878: Bt878 AUDIO function found (0).
[ 48.155429] bt878_probe: card id=[0x11ff15ff], Unknown card.
[ 48.155441] bt878: probe of 0000:00:0a.1 failed with error -22
[ 48.155451] bt878: Bt878 AUDIO function found (0).
[ 48.155471] bt878_probe: card id=[0x11822],[ Twinhan VisionPlus DVB ] has
DVB functions.
[ 48.155479] bt878(0): Bt878 (rev 17) at 00:0e.1, irq: 20, latency: 32,
memory: 0xe5800000
[ 290.776267] DVB: registering new adapter (bttv1).
I got another card, a dvb one, also based on bt878 that works
> out-of-the-box without any soundcard cable, is this an hardware
> problem or there is a way to get the terratec push sound through pci?
In the case of DVB, the audio, along with the video essence, is
encapsulated in a MPEG-2 Transport Stream that is received by the card
and sent across the system bus to the host processor for decoding...
meaning that, since the audio is already in digitized form, no ADC is
required, and thus it essentially is simply passed through the card to
the host system processor.
I've imagined this, thank you
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