> I question this as well.  I'm getting the locks on ff/rew/commercial
> skip too.  I changed a few things at once, so I'm not 100% sure if it
> started with the change from mythtv 0.16 to 0.17 or the addition of
> the PVR-500 to the box...  I know it all worked flawlessly with 0.16
> and only 0.2.0rc3 and only a PVR-350 installed...  Will try to make
> the time to revert back to this system and change only 1 thing at a
> time to ascertain what is breaking it.

I've upgraded usually just one or the other and I can tell you that from my 
experience at least, the freezing was introduced with the ivtv drivers that 
made a big change in the DMA code.  I know if I drop back to 0.3.2h right 
now, it will work just fine, because it did only a few days ago before I got 
the newest verisons to load properly with my setup (but, I'll lose the nice 
functionality of my pvr150...sound gets messed up sometimes with 0.3.2h ... 
it's a lose-lose situation at this point).  So, while it's easy to blame 
ivtv, I'm not going to be quick and jump to this conclusion for the reasons I 
stated in my previous email.  I still think there's something going on with 
the MythTV code as well.  This reminds me, actually, of two other problems I 
have with playback, which I don't think are ivtv related:

1)  Although I haven't played with this much to give a perfect description, 
I'll try from what I remember:  While in Live TV, when rewinding in 3x, after 
resuming playback, the video will rewind at super speeds and go to a point 
far from where you intended to playback.  I'm not sure if this is after 
FFWing a bit or what, but it definitely does not do what I'm expecting it to 
do

2) When FFWing in 3x mode, the timestamp does not also speed up to 3x.  It 
just counts in 1 second intervals as if it was playing back normally from the 
first place.  This could very well be the cause of problem #1, where the time 
positions are off so when rewinding at 3x, it's catching up to the real 
position it should have been at (note that when rewinding at 3x the timestamp 
moves at the correct, 3x rate).

Anyway, just something to consider.  At this point I'm not sure who's the 
culprit.  I may dive into the ivtv playback code in myth if I can find some 
time and see if I can spot anything unusual.  I wish there was some 
documentation to help me out, but at least the code is extremely clean 
(browsed through it last night), so I might have a chance  :-)

~Lou  

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