I am experiencing a problem when viewing HD content in mythtv. My experiences are as follows:
If I watch livetv, and the pchdtv tuner is on a 1080i channel like NBC, I get perfect audio and video. Switching to another 1080i channel like CBS also produces perfect audio and video. As soon as I switch to a 720p channel like FOX, the video is horribly choppy, and the audio is choppy if there is any audio at all. If I then leave the tuner on the choppy 720p FOX station, and exit livetv, the next time I watch livetv, the 720p FOX plays audio and video perfectly! I do not have any other stations where I live to test if switching to another 720p station retains the perfect audio/video sync. However, if I switch now from the perfectly working 720p on FOX to the aformentioned 1080i stations (NBC or CBS), my audio and video is horribly choppy again. It is slightly different in that the video also has horizontal 'lines' through it in addition to just being horribly choppy. Of course, if I leave the channel on the 1080i station, exit livetv, and return to livetv on the 1080i station, all is well again until I switch the channel to 720p FOX again, and the whole circle continues. I am unable to compile the xine-HD package on my system, so I cannot confirm if this happens also in Xine. Please respond to this if you have similar experiences, or of course, if you have found a fix. I had hoped that upgrading to 0.17 would fix this issue, but hasn't. I have tried the above scenario with both mpeg decoders in myth, and the issue is the same. Lastly: I have spoken with at least 5 other HD myth users in #mythtv-users, and they all seem to have the same problem. Some of these users, interestingly, claim to have the same issue on their air2pc card, so I am not sure if this is really a pchdtv issue. The pchdtv bulletin board has no mention of this problem, and my request for information about it has gone *unanswered*. Also: since upgrading to 0.17, my subchannel for my local CBS affiliate does not come up when browsing channels. The subchannel is listed as visible in setup -->channel editor, and is interestingly present in the program guide of mythtv. Is anyone having issues seeing subchannels since upgrading to 0.17? pchdtv3000 Version 1.5 drivers Mandrake 9.2 & Suse 9.1 systems both exhibit this problem for me. if there are any more useful statistics, please let me know and I will provide them. Thank you, David Hofstra
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