I had a MythTV-0.21-fixes setup working in CentOS 5.2, but decided to upgrade to MythTV-0.22 on Fedora 12 recently. I am now encountering issues with my PVR-500 that previously worked fine under CentOS 5.<br><br>Tuner #1 of the PVR-500 works fine with no issues. However, tuner #2 has been terrible. When first switching to tuner 2, everything seems okay. However, once a channel change is performed about 2 out of every 3 times, the video looks okay, but the audio is completely scrambled. It is a loud, metallic grinding type sound that one would assume damages speakers at a normal volume. <br>
<br>As an example, supposed I first tune to channel 45 -- usually the audio is okay on the first tuning, then I change to channel 46 (the audio will inevitably be screwed up), and then change back to 45, the audio will probably be screwed up on channel 45 as well. So channels that previously had "good audio" seem to go bad after a channel change. The only exception to this appears to be channel 2. But I don't know why.<br>
<br>I am not sure if this is similar to the "audio glitch" problem that was mentioned on this list and the wiki; but the suggested fixes don't seem to work. This might be because the suggestions were for older versions of linux and the tools no longer function.<br>
<br>Anyone have any solutions? Where do I start to look for problems?<br><br>Thanks!<br><br><br>