[mythtv-users] Dual tuner capture works, but not in Myth

[Nate Thompson]

I'm using an nForce-based Chaintech board, so that doesn't apply to me. I
have been able to get both cards to capture in Myth now, but the Rev2 card
playback has choppy video/audio with numerous 'Prebufferring pause' error
messages. There were other messages, but I did not make note of them and I
am not around my Myth box to where I could check. I have a feeling it is
something with the 0.1.10 ivtv drivers still not recognizing the Rev. 2 card
properly.

Nate Thompson 

-----Original Message-----
From: mythtv-users-bounces at mythtv.org
[mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Eduardo
Sent: Sunday, April 04, 2004 11:24 PM
To: Discussion about mythtv
Subject: Re: [mythtv-users] Dual tuner capture works, but not in Myth

I never had two cards, but I had a lot of problems with IVTV, turns out
there are some motherboards with VIA chipsets that don't work well with
IVTV.

It's in their FAQ, but not much mention is made to it, and it doesn't quote
specific errors.

Nate Thompson said:
> I've been working through some bugs with ivtv to get both of my 
> PVR-250 MCE cards (one revision one, the other a revision two) to work 
> in MythTV. I can do a 'cat /dev/video# > /tmp/video#.mpg' (# = 0 or 1) 
> and capture audio and video. However, when I try to use the second 
> tuner in MythTV, either with PiP functions, or watching a live 
> broadcast while another is recording, I get a couple errors. I get a 
> couple messages saying 'taking too long to be allowed to read..' 
> followed by 'waited 2 seconds for data to become available, waiting 
> again.' and finally 'Couldn't read file:
> rbuf://192.168.1.102:6543/video/buffer/ringbuf2.nuv'. After that, 
> MythTV quits responding to keypresses and I have to kill the frontend
process.
> Looking at the dmesg output, there are a bunch of 'ivtv: Timeout 
> waiting for data!' errors. Those also show up in /var/logs/messages.
>
> I am using a patched version of ivtv 0.1.10pre2 (ck05 available here - 
> http://kmos.org/~ckennedy/ivtv/ivtv-0.1.10-pre2-ck05.tgz). I was 
> originally using 0.1.9 with one tuner card without problems, but had 
> to upgrade to 0.1.10 because the older version would not correctly 
> identify my revision two PVR-250. Any insight into this would be 
> apprechiated. This question might be better asked on the ivtv mailing 
> list but I thought I'd see if someone here has had a similar 
> experience that they were able to work through.
>
> Nate Thompson
>
>
>
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> mythtv-users at mythtv.org
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>

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