Ulf,
The S-video problem was mine. I didn't realize that the VCR I am using
requires a manual switch on the back of the unit to go from composite to
S-video. Now I am getting audio and black & white video just as Greg described
in an earlier post.
Jim
----- Original Message -----
From: "Jim Hammack" <[EMAIL PROTECTED]>
To: [email protected]
Subject: RE: [ivtv-devel] PVR150/500 audio and video patch.
Date: Tue, 04 Jan 2005 17:12:01 -0600
>
> Ulf,
>
> Some progress with my NTSC (tuner=50) PVR-150 and your latest patch:
>
> With mixer_input=2 and 'ivtvctl -p 2' (composite) I get perfect
> composite video and audio.
>
> With mixer_input=1 and 'ivtvctl -p 6' (NTSC) I get tuner video and no
> audio.
>
> With mixer_input=1 and 'ivtvctl -p 2' (composite) I get
> composite video with tuner audio.
>
> Still no audio and just grey screen with any mixer_input and
> 'ivtvctl -p 0' (S-video) input.
>
> Hope these clues help.
>
> Thanks,
> Jim
>
> ----- Original Message -----
> From: Ulf <[EMAIL PROTECTED]>
> To: [email protected]
> Subject: RE: [ivtv-devel] PVR150/500 audio and video patch.
> Date: Tue, 4 Jan 2005 11:51:21 +0100
>
> >
> > I don't know anything about audio in NTSC. But it seems to me from your
> > description that the NTSC tuner on your card has a line-out connection with
> > demodulated audio. This seems to be routed on the NTSC 150 card to the
> > wm8775 chip.
> >
> > On my PAL cards, the broadcast audio demodulation of tuner audio is made by
> > the cx-chip, hence in tuner mode the wm8775 input is disabled and the cx
> > internal audio source is used.
> >
> > This is consistent with your description that you have no audio when tuner
> > is selected and that the composite and s-video inputs has the tuner and
> > composite audio mixed. The wm8775 chip has 4 stereo line-in inputs which can
> > be mixed. My wm8775 driver mixes all signals simply because I was to lazy to
> > find out which of the inputs that is actually used.
> >
> > I've created a new patch where you can specify a input enable value to the
> > wm8775 module like this:
> > insmod wm8775 mixer_input=1
> >
> > The four different inputs are selected as with 1,2,4 and 8. I've also added
> > an input -p 5 that uses the wm8775 for audio and tunner. If you could try
> > thw wm8775 module with different values for mixer_input when can isolate
> > which setting is which input. This is not a final soloution just a way to
> > get more information.
> >
> > New patch can be found here:
> > http://eklund.to/cx25840-wm8775-2005-01-04_11.42.31-patch-for-ivtv-0.3.2a.gz
> >
> > > cx25840: *** I2C Write to no cx25840 device 0x43.
> > > cx25840: I2C sequence write failed, length 4, ret -121
> > You can ignore this error, I2C device 0x43 is not present on the NTSC cards
> > it seems....
> >
> > /Ulf.
> >
>
>
> Jim Hammack
> [EMAIL PROTECTED]
>
>
>
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