[mythtv-users] After "long" livetv pause, then rewind, mythfrontend becomes unstable

[John Biundo]

Hi all,

After a "long" pause*, if I attempt to rewind livetv, things become 
unstable.  Often, mythfrontend becomes unresponsive for a long time 
(maybe several minutes), then resumes rewinding or playing.

[*I reproduced the problem this morning by pausing for about 45 minutes; 
I'm not sure what the shortest pause that would trigger this is, but 
"brief" (say 1 or 2 minutes) pauses don't trigger it]

When this happens, I often see messages in the mythfrontend log like:
"prebuffering pause"
and
"Waited too long for decoder to pause"

Interestingly, once this condition is obtained, I can continue to 
fastfoward, pause, and play without problem.  Further rewinds cause the 
same problem.

By the way, if there are well-known explanations or descriptions for 
these mythfrontend messages (prebuffering pause, waited too long...) I 
would surely love to hear them!  Googling these messages hasn't been 
very fruitful so far.

Anybody else seen this, or got any clues?

I'm fairly new to MythTV, but have decent linux skills and am willing to 
try to track this problem down if I can get a little guidance on how to 
best collect data, generate some hypotheses, and test them.

Thanks in advance for any help.  This problem has certainly raised some 
"uncomfortableness" in the household, and has people feeling the need to 
reach for video tape when something crucial needs to be recorded!

Cheers,
john