[mythtv-users] Backend crashing/locking up

[Carl]

So 'cat /dev/video0 > /tmp/t.mpg' runs the "encoder", and 'dd if=/tmp/t.mpg 
of=/dev/video16 bs=65536' runs the "decoder" (in quotes because supposedly 
it's the other way around, but I can't grok that). Sometimes ivtv chokes 
doing these things, but by far the biggest source of trouble is the 
framebuffer interactions that produce the on-screen display, program guide, 
etc. This can be touched by doing 'ivtvfbctl /dev/fb1 -senddma', among other 
things.

Anyway, there is a lot of work going on to resolve this, check out the IVTV 
archives....


On Tuesday March 9 2004 00:41, Mike Drons wrote:
> I have just upgraded to a PVR250 card and my backend is crashing when
> watching live tv after about 2 minutes.
>
> I have an AMD 2400 with a nvidia gforce2 card running gentoo.
>
> I have mythtv .14 from an ebuild.
>
> This is the only error I get on the backend.
> 2004-03-07 23:51:50 Changing from None to WatchingLiveTV
> Couldn't read data from the capture card in 15 seconds.  Game over, man.
>
> Doing a cat /dev/video0 > /tmp/t.mpg  will capture for over an hour, so I
> don't think it is the ivtv driver.  I saw some discussion on this issue,
> but no one every says what solved the issue.
>
> I have made sure that the pvr250 has a dedicated IRQ (IRQ 7).  I am using
> IVTV 1.9 drivers for the card.
>
> Michael Drons
> INS
> mdrons at ins.com

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