Re: HVR-1600 (model 74351 rev F1F5) analog Red Screen

[Eric B Munson <emunson@mgebm.net>]

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On Tue, 19 Apr 2011, Andy Walls wrote:

> On Mon, 2011-04-18 at 18:48 -0400, Eric B Munson wrote:
> > On Mon, 18 Apr 2011, Andy Walls wrote:
> > 
> > > Eric B Munson <emunson@mgebm.net> wrote:
> > > 
> > > >On Mon, 11 Apr 2011, Eric B Munson wrote:
> > > >
> > > >> On Sun, 10 Apr 2011, Andy Walls wrote:
> > > >> 
> > > >> > On Wed, 2011-04-06 at 13:28 -0400, Eric B Munson wrote:
> > > >> > > On Tue, Apr 5, 2011 at 10:58 AM, Andy Walls
> 
> > > >
> > > >Is there anything else I can provide to help with this?
> > > 
> > > Eric,
> > > 
> > > Sorry for not getting back sooner (I've been dealing with a personal
> > situation and haven't logged into my dev system for a few weeks).
> > > 
> > > What rf analog source are you using?
> > 
> > Sorry, very new to this, I am not sure what you are asking for here.
> 
> I mean: analog cable, DTV Set Top Box (STB), VCR, etc.
> 
> I have only tested the driver on analog US Broadcast Channel 3, since I
> only have a DTV STB as an RF analog TV source.

I am using analog cable.  Cable here is about 25% digital and 75% analog.

> 
> 
> 
> > > Have you used v4l2-ctl to ensure the tuner is set to the right tv
> > standard (my changes default to NTSC-M)?
> > 
> > emunson@grover:~$ v4l2-ctl -S
> > Video Standard = 0x0000b000
> > 	NTSC-M/M-JP/M-KR
> > emunson@grover:~$ v4l2-ctl -s ntsc
> > Standard set to 0000b000
> > emunson@grover:~$ v4l2-ctl -S
> > Video Standard = 0x0000b000
> > 	NTSC-M/M-JP/M-KR
> > 
> > What should the default be?  NTSC-443?  When I set to NTSC-443 I see
> > the same behaviour as below when I try and change channels.
> 
> NTSC-M is the default.  Having it set to autodetect the US, Japanese
> (-JP), or South Korean (-KR) variants is OK.
> 
> Never use NTSC-443 as you likely will never encounter it in your life.
> NTSC-443 is never broadcast over the air or cable.  It is a weird
> combination of NTSC video usings a PAL color subcarrier frequency.
> 
> 
> 
> 
> > > Have you used v4l2-ctl or ivtv-tune to tune to the proper tv channel
> > (the driver defaults to US channel 4)?
> > 
> > emunson@grover:~$ v4l2-ctl -F
> > Frequency: 0 (0.000000 MHz)
> > emunson@grover:~$ v4l2-ctl -f 259.250
> > Frequency set to 4148 (259.250000 MHz)
> > emunson@grover:~$ v4l2-ctl -F
> > Frequency: 0 (0.000000 MHz)
> 
> OK, that doesn't look good.  The tda18271 tuner and/or tda8290 demod
> drivers may not be working right.
> 
> I'll have to look into that later this week.
> 
> BTW, Mike Krufky just submitted some patches that may be relevant:
> 
> 	http://kernellabs.com/hg/~mkrufky/tda18271-fix
> 

I have applied these patches and I am still seeing the same problem (frequency
still report 0 after being set) and mplayer still closes immediately.

> 
> > 
> > > Does v4l2-ctl --log-status still show no signal present for the '843 core in the CX23418?
> > 
> > Yeah,
> >    [94465.349721] cx18-0 843: Video signal:              not present
> 
> The tuner or demod isn't tuning to a channel or getting a signal.
> 
> Can you try channel 3 (61.250 MHz)?  That one works for me.

Still shows not present on channel 3.

> 
> 
> > > Does mplayer /dev/videoN -cache 8192 have a tv station when set to the rf analog input with v4l2-ctl?
> > 
> > emunson@grover:~$ mplayer /dev/video0 -cache 8192
> > MPlayer 1.0rc4-4.4.5 (C) 2000-2010 MPlayer Team
> > 
> > Playing /dev/video0.
> > Cache fill:  0.00% (0 bytes)
> > 
> > 
> > Exiting... (End of file)
> 
> Hmmm.  I would have expected at least a black picture with snow, if not
> tuned to a channel.
> 
> Does analog S-Video or Composite work?

Unfortunately, I do not have anything I can use to test these.  The card only
takes coaxial or S-Video input and I don't have any sort of S-Video cables or
converters.

Eric

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