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@xxxxxxxxx> 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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