On 25 Mar 2002, Gerd Knorr wrote:
> > 3. Updating the saa7134-cards.c cards entry is not reflected properly
> > via 'v4lctl list' after a 'rmmod saa7134 tuner v4l2-common ...' while
> > running under XWindows. E.g., while modprobing the official
> > saa7134-0.1.5 module vs. my modified saa7134-0.1.5-fv2k module, the
> > availability of the S-Video input is not updated properly.
>
> Sounds like you are using Xvideo. The X-Server reads this info only
> once at startup. Try "-noxv" or "-c /dev/video<n>" to make xawtv talk
> to the device directly.
Ah. I see. I *was* using Xvideo. I normally don't use -noxv. Thanks.
>
> > 4. vbi support on FV2K still not functional. 'alevtd -d' after I've tuned
> > into the correct TV channel complains about "insufficient number of
> > periods..."
>
> Known issue. Not sure whenever this is a driver or application issue.
> The saa7134 uses another sample rate than the bt848 cards, might be the
> vbi decoding algorithms are fine-tuned for the bt848. alevtd's vbi code
> often recognises the start sequences, but bails out early while decoding
> the line with hamm errors.
>
Ok.
> > + if (dev->ctl_mute || dev->automute)
> > + saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x07, 0x00); /* LINE1 */
>
> I still think this is _wrong_.
>
> TV cards usually have a line-out and a line-in. The line-out can be
> connected to your sound-cards line-in, and whatever was in your
> sound-cards line-in before can be plugged into the tv-cards line-in now.
>
> The LINE1 input was designed to do exactly that (power-on default is to
> simply pass throught the signal from LINE1 to the audio output), and I
> suspect the only reason that the above mutes the card for you is that
> you don't have anything connected to the tv cards line-in.
>
Well, I'm using the Ext. Audio In of the TV Card to accept the audio from
my VCD player. The Line Out of the TV Card goes to the Soundcard input,
using the configuration given in the FlyVideo User Manual.
There are no additional audio jacks free on the back of the TV card.
Unless there's other sources of internal audio input, I think that should
be it. It's probably due to the use of the external analog mux HEF4052BT
that the FlyVideo card decided to pass all audio inputs via LINE2.
I suspect they use the external analog mux to provide stereo pass-through
for the Ext. Audio In, while TV audio may be mono or stereo depending on
the card (FV2K/FV3K).
Do take a loook at the inputs table I compiled in an ealier post to the
list. I think Gunther also needs to use the external switching to
access the Ext. Audio In via LINE2.
Here's my setup:
VCD Audio -> Ext. Audio In (TV Card)
+-- Line Out (TV Card)
~~~~~~~~~~ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+-> Line In (Sound Card)
T.C.
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