[mythtv-users] MythTV and PVR150's Anyone?

Bob K Mertz lists at bibleboy.org
Fri Feb 17 18:19:10 UTC 2012


There is a bug open related to this issue.  I'm having the same one.

http://code.mythtv.org/trac/ticket/9846
http://code.mythtv.org/trac/ticket/9830


On 2/17/12 12:27 PM, Jeffrey Preston wrote:
> I have been using Mythbuntu for several years now. I have two P4 systems
> with 875 based boards, with 2 Gig of memory. One processor is 3.4Ghz,
> and the other is 3.2GHz. One system has three (3) PVR150's and the other
> contains 2 ATi HDTV Wonder cards, and one PC HDTV 5500 card. The analog
> cards are in a slave backend, and the digital cards are in the master.
> The digital cards work well with Mythbuntu 11.04. Loading 11.10 results
> in a hung system at boot. The PVR-150's in the first system is what I am
> having trouble with. When I load 11.04 and configure the three
> PVR-150's, the resulting analog stations that are tuned, about 80% of
> the time, result in video that is distorted, jumping, with freezing and
> stuttering. Once the distortion starts, about 25% of the time, I get
> either the error "Error opening jump program file" or "Video frame
> buffering failed too many times". Has anyone else seen this issue with
> analog tuners? Is this issue only with MPEG-2 encoder cards?
>
> I have tried tuning a digital station first (on the master), as
> suggested by one of the MythTV bug tracking reports. Maybe this will not
> work for me, as the digital cards are in a separate system.
>
> I have tried disabling HyperThreading on my P4 - no change.
>
> I have tried running the backend booted to a text only mode - no change.
>
> I have tried updates in the 0.24.1 fixes branch, up until 3 or 4 weeks
> ago - no change.
>
> I have tried loading Mythdora 12.23 (MythTV version 0.23) and it
> resulted in a 100% working system with perfect video, but when I applied
> updates, and updated MythTV to 0.24, attempting to tune ANY analog
> station resulted in a hung frontend. Sooooooooooooooo, close.
>
> On a whim, I tried loading Ubuntu 11.04, and then used Synaptic to load
> the MythTV modules, and it resulted in a working system, with perfect
> video on all of my PVR-150's. I could change channels over a dozen times
> before I ran into any kind of trouble. But I got absolutely no distorted
> video. Instead, about every dozen or so channel changes, I get a long
> pause on the frontend, and then I see the main menu with the error
> message "Video frame buffering failed too many times.". And that is
> fairly consistent - the engineer in me likes consistency. I have not
> applied updates or loaded the fixes branch yet - should I? I would like
> to isolate the problem first, but the only tools I have is a persistent
> attitude and my hardware engineering background.
>
> I would prefer to stick with Ubuntu, as it is what I know. Does anyone
> have any suggestions, what to try next?
>
> One last note, is that Mythbuntu 8.10 works perfectly on my analog
> tuners, but I cannnot use version 8.10 any longer, as it will not be
> supported much longer, and I need to run later versions of MythTV for
> the VDPAU support on my remote front ends.
>
> Thanks to all for any help.
>
>
>
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