Re: [gentoo-user] Re: OT - Need MythTV setup help (resend)

[Mark Knecht <markknecht@gmail.com>]

On 1/8/06, Michael Sullivan <michael@espersunited.com> wrote:
> On Sun, 2006-01-08 at 09:32 -0800, Mark Knecht wrote:
> > Michael Sullivan <michael@espersunited.com> wrote:
> >
> >
> > > I tried the test "cat /dev/video0 > test.mpg" and opening it in mplayer
> > > and all I got was the blank screen.
> >
> > I've been through this numerous times. It's no fun. Sorry.
> >
> > First, and most important, what does dmesg about ivtv show when you boot?
> >
>
> michael@camille ~ $ dmesg | grep 'ivtv'
> ivtv:  ==================== START INIT IVTV ====================
<SNIP>
> ivtv:  ====================  END INIT IVTV  ====================
> michael@camille ~ $

That looked OK to me.

>
>
> > Second, when you record 10 seconds of data to test.mpg what is the
> > file size? Zero/small means ivtv simply isn't working. Large means it
> > is but the tuner or something else is not working correctly.
> >
> camille ~ # cat /dev/video0 > temp.mpg
>
> camille ~ # ls -lh temp.mpg
> -rw-r--r--  1 root root 13M Jan  8 11:46 temp.mpg

So you are getting 'data', even if it was black. I see in a second
email you got a picture now. That's good.
>
> > Note that there are a number of us that are unable to reboot PVR
> > cards. We must cold boot them to have them operate correctly. Info
> > will show up in dmesg if you are one of this unfortunate select group.
> > lspci -x after a warm and cold boot would show a difference.
> >
<SNIP>
>
> 05:00.0 Multimedia video controller: Internext Compression Inc iTVC16
> (CX23416) MPEG-2 Encoder (rev 01)
> 00: 44 44 16 00 16 01 10 02 01 00 00 04 10 40 00 00
> 10: 08 00 00 d0 00 00 00 00 00 00 00 00 00 00 00 00
> 20: 00 00 00 00 00 00 00 00 00 00 00 00 70 00 01 48
> 30: 00 00 00 00 44 00 00 00 00 00 00 00 03 01 80 08
<SNIP>
>
> And here is lspci -x from a "warm" boot:
<SNIP>
>
> 05:00.0 Multimedia video controller: Internext Compression Inc iTVC16
> (CX23416) MPEG-2 Encoder (rev 01)
> 00: 44 44 16 00 16 01 10 02 01 00 00 04 10 40 00 00
> 10: 08 00 00 d0 00 00 00 00 00 00 00 00 00 00 00 00
> 20: 00 00 00 00 00 00 00 00 00 00 00 00 70 00 01 48
> 30: 00 00 00 00 44 00 00 00 00 00 00 00 03 01 80 08
<SNIP>

You are lucky. You do not have the problem I have.

OK, since your other email said you got a picture but Myth isn't
seeing it please try removing the current card setup in mythsetup and
recreating it. I've had a couple of times where an ivtv update caused
the existing card settings to not work. I delete them, recreate it
from scratch, and I'm back to the races.

On other possibility is how you are linking the PVR to Myth. Did yuo
set the video device to /dev/v4l/video0 (not /dev/video0) and the
default input to Tuner 0? In the input connections section did you set
Tuner 0 to your cable listing from Zap2It?

Hope this helps,
Mark

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