On 06/04/10 21:42, Andy Walls wrote: <snip> >> cx18-0 843: Video signal: present >> cx18-0 843: Detected format: NTSC-M >> cx18-0 843: Specified standard: NTSC-M >> cx18-0 843: Specified video input: Composite 7 >> cx18-0 843: Specified audioclock freq: 48000 Hz >> cx18-0 843: Detected audio mode: mono >> cx18-0 843: Detected audio standard: no detected audio standard > ^^^^^^^^^^^^^^^^^^^^^^^^^^ > | > And this is what makes me pull my hair out. ----+ > > Same card, same chipset, same firmware image, in the same PC and mobo, > same TV channel with the same RF signal, same analog tuner assembly, and > one '843 core detects the audio standard and the other '843 core > doesn't. :P > > If you have controlled the signal levels properly and used good cable > and grounding, the difference has to be in the analog tuner can. Either > it has gone bad, or it is picking up a lot of noise from somewhere. > > Come to think of it, a bad analog tuner assembly could explain the red > screen. > > Anyway, if *everthing* is the same, and one card works and one card > doesn't, there's nothing to be done in software - except implement > workaround that may not work. I *speculate* that you have a dying card. > Another data point... I just checked again, and audio is still working on that card. Thinking back, I don't believe I can ever positively point to a time when either card "went bad" once it had initialized correctly. When the red screen problems started, I hadn't done any clear digging about when it had started. Once I recognized the red screen, I only even found it after boot. The hard power off has always worked to recover a red screen after boot, and since adopting this procedure I have never seen it come back once properly initialized.
With the audio problem, my wife noticed the silent show, and I tracked it back approximately to that morning's boot. I can't say precisely because some shows did record with sound, but I believe those were recorded on the other card. It's hard to tell afterward. Now after a week without audio on the first card, I rebooted a few days ago and have had audio ever since. I won't deny that I may have a dying card, but if so it appears that initialization is the stress point, and it hasn't degraded to the point of failure during normal operation. It needs to be on tonight to record, and the next overnight recording is Friday night. I may try shutting down Tues-Thurs seeing if full power off all night has any effect. Dale Pontius _______________________________________________ ivtv-users mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-users
