2011/3/5 adq <adq@xxxxxxxxxxxxx>: > 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). > Hi, right, I can reproduce it when completely unpatched, but it takes a while. I left HTS "tvheadend" running at the same time as "dvbsnoop" monitoring each frontend's status (so I had lots of i2c traffic going on), and it happened sometime overnight. I turned on all the idle scanning and frontend monitoring features tvheadend has. Now trying running the same with the -v1 patch. -- 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
