[mythtv-users] HD3000 DVB Recordings - Freezes on Playback

[Drew Tomlinson]

On 1/20/2006 8:27 AM Steve Adeff wrote:

>On Friday 20 January 2006 11:14, Michael Haan wrote:
>  
>
>>On 1/20/06, Steve Adeff <adeffs at gmail.com> wrote:
>>    
>>
>>>On Friday 20 January 2006 10:47, Drew Tomlinson wrote:
>>>      
>>>
>>>>On 1/19/2006 11:51 PM frank s wrote:
>>>>        
>>>>
>>>>>Hello, I am a newbie to mythtv and have a setup that
>>>>>is working fairly well, but is having a problem with
>>>>>freezes under certain conditions.
>>>>>
>>>>>I have been searching the board for MythTV users who
>>>>>are having a problem similar to what I am experiencing
>>>>>and have turned up a couple of posts that are similar.
>>>>>Neither have a posted resolution or are linked, but
>>>>>they may be the same.
>>>>>
>>>>>First a short description of the problem as I am
>>>>>experiencing it:
>>>>>
>>>>>Setup
>>>>>- HD3000 connected to us-cable (digital)
>>>>>          
>>>>>
>>>>Terrestrial here.
>>>>
>>>>        
>>>>
>>>>>- Dell 4700 w/Pentium 4 Processor 530 with HT
>>>>>Technology (3.00GHz, 800 FSB)
>>>>>          
>>>>>
>>>>AMD 2800+ on Nvidia GeForce2 chipset
>>>>
>>>>        
>>>>
>>>>>- 512 MB RAM
>>>>>          
>>>>>
>>>>Ditto.
>>>>
>>>>        
>>>>
>>>>>- 160 GB EIDE SATA Hard Drive (7200 RPM)
>>>>>          
>>>>>
>>>>And a 200 GB EIDE Drive in a lvm config with my 160 GB.
>>>>
>>>>        
>>>>
>>>>>- Hauppauge PVR 1081 RT connected to us-cable (analog)
>>>>>          
>>>>>
>>>>PVR 250
>>>>
>>>>        
>>>>
>>>>>- Fedora Core 4
>>>>>          
>>>>>
>>>>Gentoo 2.6.13-r5 kernel.
>>>>
>>>>        
>>>>
>>>>>- MythTV 0.18.1
>>>>>- frontend and backend are both on this box
>>>>>          
>>>>>
>>>>Same.
>>>>
>>>>        
>>>>
>>>>>Problem symptoms
>>>>>- watching live HDTV sometimes freezes (mostly with
>>>>>720p format)
>>>>>- playing back HDTV recordings made while watching
>>>>>analog tv usually freeze
>>>>>- playing back HDTV recordings made while frontend is
>>>>>idle appear NOT to freeze (7 hours of recordings made
>>>>>with no freeze)
>>>>>- when freeze occurs kswapd0 becomes very active and
>>>>>the disk usage grows with time
>>>>>          
>>>>>
>>>>Haven't noticed this but then my HD3000 install is still very new.
>>>>
>>>>        
>>>>
>>>>>- a particular recording will always freeze at the
>>>>>same point on multiple playback attempts
>>>>>- skipping past the freeze point does not cause a
>>>>>freeze, but audio is lost even though the video is
>>>>>good
>>>>>          
>>>>>
>>>>I have this problem too.  Suspected either I didn't have something
>>>>right in my config or due to weak signal.  I know my signal strength
>>>>bounces around (80, 70, 75, 65, 68, 72, etc.)  on one station and so
>>>>far, this behavior has been limited to recordings on that channel.
>>>>
>>>>        
>>>>
>>>>>- playing the recording in the window of the select
>>>>>recording page allows the video to play right through
>>>>>the freeze point without freeze occurring (of course
>>>>>there is no audio at all in this case)
>>>>>          
>>>>>
>>>>Haven't tried this as I have thumbnails selected.
>>>>
>>>>        
>>>>
>>>>>- the frontend reports a prebuffering pause when the
>>>>>freeze occurs
>>>>>          
>>>>>
>>>>Same here.
>>>>
>>>>        
>>>>
>>>>>- the freeze occurs at the same point when mplayer is
>>>>>used to play the recording
>>>>>          
>>>>>
>>>>Haven't tried this but I will.
>>>>
>>>>        
>>>>
>>>>>Two previous posts that I found which appear to be
>>>>>related to this problem are:
>>>>>
>>>>>http://mythtv.org/pipermail/mythtv-users/2006-January/116465.html
>>>>>and
>>>>>http://mythtv.org/pipermail/mythtv-users/2005-December/115226.html
>>>>>
>>>>>I would appreciate any ideas on how to correct this
>>>>>issue.  Thanks in advance for your help.
>>>>>          
>>>>>
>>>>I'll be watching this thread with interest as I have no idea what's
>>>>going on.  :)
>>>>
>>>>Cheers,
>>>>
>>>>Drew
>>>>        
>>>>
>>>You guys should seriously consider upgrading to SVN, Lots of fixes for
>>>HD, I've had my HD3000, and DCT6200 and a PVR150 all connected and
>>>running fine,
>>>HD works great, etc.
>>>      
>>>
I've been considering this but am not confident I can fix what breaks.   
Every time I touch this box something gets screwed up.  :)  However, I 
was strongly considering it until I heard about 0.19 being released.  
Hopefully the official Gentoo portage tree will be updated to include 
the new version shortly thereafter

>>So, how would that work if my original instal was from Jarod's guide?
>>    
>>
>
>Download and compile SVN, it will configure to put it in /usr/local which 
>should keep it seperate from 18.x installs.
>
>backup your database and install the SVN copy. Then you'll probably want to 
>run mythtv-setup (from the SVN installed location) to make sure things jive. 
>Run mythbackend and mythfrontend from SVN instead of 18.1.
>  
>
Would there be any reason to keep 0.18 around other than to back out the 
change?  I read somewhere (probably on this list) that upgrading changes 
the database (which I'm sure is why you said to back it up) and once 
that happens, you can't go back.  IIRC, someone told me to remove 0.18 
before installing SVN but maybe that was a Gentoo specific ebuild thing?

Thanks,

Drew

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