[mythtv-users] external tuner channel change causes crash

[Andrew]

Since upgrading to 0.24 changing I have a problem with losing audio then 
aborting tv or a frontend crash when changing channels on an external 
satellite tuner.

The basic setup hasn't changed for some years, however, perhaps there 
are some changes necessary due to 0.24 I'm not aware of.

The crash only occurs when using an external  satellite decoder which is 
connected to myth via the composite input of a
software V4L decoder and the audio via the sound cards line input.

On initial tuning of the channel, all is fine, video and audio is 
present.  Hence my recordings are OK.  However, on Live TV, although the 
initial tuning is OK with both audio and video, if I change channels 
(via an IR blaster script) then the audio is lost and tv eventually 
either aborts back to the main menu or the frontend crashes.  This has 
only occurred since upgrading to 0.24.

I have attached a frontend log with some additional debugging turned on. 
in this log the first channel tune is successful at 2011-06-15 
07:53:40.236.  However, it fails when changing channels one minute later 
at 2011-06-15 07:54:45.903

Any suggestions?
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