[mythtv-users] recordings cut off early especially when watching recoding in progress

[David Leinbach]

Out of curiosity, how did you determine that this was the problem?

On 11/9/06, Jon Vanderwoude <jvanderw at gmail.com> wrote:
>
> On 10/13/06, Nick <knowledgejunkie at gmail.com> wrote:
> > On 12/10/06, McNally <mcnallychris at pobox.com> wrote:
> > > Hi,
> > >
> > > I'm using mythtv 0.20.  When I watch recording in progress, such as a
> > > baseball game, I begin watching about 40 minutes after the start, fast
> > > forward through commercials and other junk,  and find that the actual
> > > recording seems to have stopped soon after i started watching. This
> has
> > > happened twice already to me. I see from the logs that there seems to
> be
> > > a DMA error and it may be IVTV related. Other recordings have ended
> much
> > > sooner than scheduled and there is an error in the Myth log.
> > >
> > > I am using an ASUS A8N-VM CSM mainboard with an AMD Sempron  which has
> > > NVIDIA nforce and gforce chipsets. The backend and frontend are the
> same
> > > box. I am using ext3. The CPU from top is around 90% when watching
> > > recordings. I have sections of the logs below.  Thanks in advance.
> > >
> > > ivtv version
> > > ivtv:  version 0.7.0 (tagged release) loading
> > > ivtv:  Linux version: 2.6.17-1.2142_FC4 mod_unload 686 REGPARM
> 4KSTACKS
> > > gcc-4.0
> >
> > Try upgrading to ivtv 0.7.1 which has a fix for DMA problems like this
> > - from the ivtv changelog:
> >
> > IVTV changes:
> >
> > 0.7.1 stable release
> >         - Add getopt support to test/vbi. Add new timeout option.
> >         - Fix South African broadcast frequency table.
> >         - Detect and workaround DMA offsets that can be introduced by
> >           a DMA error.
> >         - Sliced VBI always uses PIO, never DMA.
> >
> >
> > Nick
>
>
> I was having this issue even after installing the new firmware, turns
> out the 3.3v line on my power supply was bad and the memory chip on
> the PVR-250 wasn't getting the juice it needed to keep it going,
> replacing the power supply resolved the issue.
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