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<pre><tt>Nick, thanks for the message. I will update ivtv to 0.7.1 as you suggest since it does fix a DMA error.
I should have some opportunity to test it this weekend. Meanwhile I did make this change:
</tt>MythTV Front end setup
utilities/setup --- setup --- TV settings -- preferred mpeg2 Decoder
changed it to libmpeg2 (might be faster on some AMD processors)
<tt>-------
Date: Fri, 13 Oct 2006 11:57:22 +0100
From: Nick <<a
href="http://us.f303.mail.yahoo.com/ym/Compose?To=knowledgejunkie@gmail.com&YY=35524&y5beta=yes&y5beta=yes&order=down&sort=date&pos=0&view=a&head=b">knowledgejunkie@gmail.com</a>>
Subject: Re: [mythtv-users] recordings cut off early especially when
watching recoding in progress
To: "Discussion about mythtv" <<a
href="http://us.f303.mail.yahoo.com/ym/Compose?To=mythtv-users@mythtv.org&YY=35524&y5beta=yes&y5beta=yes&order=down&sort=date&pos=0&view=a&head=b">mythtv-users@mythtv.org</a>>
Message-ID:
<<a
href="http://us.f303.mail.yahoo.com/ym/Compose?To=5387cd30610130357y3bd2fecfo78851a3de7a29a63@mail.gmail.com&YY=35524&y5beta=yes&y5beta=yes&order=down&sort=date&pos=0&view=a&head=b">5387cd30610130357y3bd2fecfo78851a3de7a29a63@mail.gmail.com</a>>
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On 12/10/06, McNally <<a
href="http://us.f303.mail.yahoo.com/ym/Compose?To=mcnallychris@pobox.com&YY=35524&y5beta=yes&y5beta=yes&order=down&sort=date&pos=0&view=a&head=b">mcnallychris@pobox.com</a>> 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</tt></pre>
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