2011/3/5 Juan Jesús García de Soria Lucena <skandalfo@xxxxxxxxx>: > Hi, Andrew. > > This is what happens to me with both the KWorld dual tuner (when using only > one tuner) and the Avermedia Volar Black (single tuner), both based on > AF9015. > > I also got corrupted streams with the KWorld when capturing via both tuners > (the video our the audio would show artifacts in mythtv each several > seconds). > > As far as the loss of tuning ability goes, I think it's a problem related to > tuning itself, since it wouldn't happen when you just left a channel tuned > and streaming in a simple client, but would trigger after a random time when > you left mythtv scanning the channels for EIT data. > > I don't think it's a problem with a specific HW implementation, since I got > it with both AF9015-based cards. It could be either a chipset quirk our a > bug in the driver. > > My informal and quick tests with Windows Media Center and these cards did > not reproduce the problem, when trying to change channels as quickly as > possible, admittedly for not so long a time. Correct. I have two af9015 cards from different manufacturers as well, and they both exhibit the same problem. However, on a hunch last night, I went back to my original (-v1) patch with the total i2c bus lock and left it running with my tuning scripts for 10 hours. Both tuners are still working fine. That isn't conclusive, but it is encouraging. I'm just swapping back to a completely unpatched state to see how long it takes to break and to check if its easily reproducible (on my live system, it usually does it within a few hours of normal usage). -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
