[mythtv-users] Strange shocking screen during recording/watching

Fri Feb 17 14:12:10 UTC 2012

Hi greg,

Indeed that is the problem.. My luck is that i don't get thrown back..;) See my post just a min ago about some extra debugging.. I found that the audio/video are not in sync. This only with the record/watch.. all other things like livetv and watching after recording doesn't have this issue..

I will also keep an eye on your post. thx for your response..
  _____  

From: Greg Grotsky [mailto:spikeygg.mythbox at gmail.com]
To: Discussion about MythTV [mailto:mythtv-users at mythtv.org]
Sent: Fri, 17 Feb 2012 15:02:01 +0100
Subject: Re: [mythtv-users] Strange shocking screen during recording/watching

On Fri, Feb 17, 2012 at 3:10 AM, Quint van Drosthagen <quint at vandrosthagen.net> wrote:

Hi guys,

Since a month now i have replaced my old mythtv box with a brand new one.. Because i watch allot of HD content and record allot of shows i decided that i needed to have a more powerfull and future proof machine so decided to upgrade not only mem and cpu but also to a GT430 card and SSD drives 2x Corsair Performance Pro Series 256 GB, S-ATA III.    

But now the problem with this setup against the old one.. When i record a program like say House.. and i decided to watch after 20 minutes (so recording is still going on) to that recording so i can skip commercials etc.. the screen shocks every xx seconds.. The strange thing is that this is only happening during the record/watch fase.. if is go to livetv during the same recording i can watch it without any shocking.. and if the recording is done and i watch a program no problems either.. So i thought maybe it is an IO problem somewhere so i tuned my SSD according and looked at iotop/top etc. etc. but i can't find any bottlenecks anywhere.. It is so verry strange that everything is working as a charm only if i record something and watch it at the same time.. The strangest thing i find is that livetv (also a sort of recording/watching) isn't having any problems..     

It is so strange.. And i hope somebody can help me figure out what is going on here..;)

    Regards

Quint

Quint, I have the same graphics card as you and if I understand you correctly then I have the same problem.  The "shocking" that you experience, is it video and audio seizing up sometimes for seconds and then video and audio resuming?  That is what I experience, and after a few of these incidents in quick succession (like within ~2 minutes) myth will boot me back to the recordings menu with a "Irrecoverable Recorder Error".  I actually sent an email to the users list about it last night titled "Irrecoverable Recorder Error while watching recordings that are currently being recorded."  Like you, when the recording is done, no playback problems whatsoever.  

-Greg      
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