[mythtv-users] Firewire troubles Motorola 6412

[Allan Wilson]

On 6/11/06, Steven Adeff <adeffs.mythtv at gmail.com> wrote:
>
> On 6/10/06, Rob Baumstark <rbaumstark at gmail.com> wrote:
> > On 6/10/06, Greg Woods <greg at gregandeva.net> wrote:
> > > I've got a Motorola DT-6412 cable box (basically the same as the
> > > DT-6400, but with a DVR in it). I am trying to record from it over
> > > Firewire, and not having any luck. This is a problem that is outside
> of
> > > MythTV, as I have the same issues using test-mpeg2 to record.
> > >
> > > I know that at least some of the channels are good (i.e. available
> > > unencrypted over Firewire), because every now and then I can actually
> > > get a recording using test-mpeg2. Those play back quite well through
> > > Myth (I cheat to test this; I overwrite one of the empty files from a
> > > recording that didn't work with the output file from test-mpeg2, and
> > > then I can play it through Myth). But most of the time, all I get is
> an
> > > empty file. I have checked plugreport so I know I have the correct
> host
> > > and node numbers. The channel changer works, because if I schedule a
> > > recording, I can see it change the channel to the designated recording
> > > channel on the box. But all I get is an empty file for a recording.
> > >
> > > Is there anywhere I can go for more detailed instructions on setting
> > > this up? Any information I can provide that would help anyone in
> > > assisting me to diagnose this? I have tried powering everything down
> and
> > > disconnecting the firewire cable, and that does not help. I have yet
> to
> > > figure out what it is that I do that makes test-mpeg2 work every once
> in
> > > a while, but I feel like I have to be close.
> > >
> > > I am running FC5, ATrpms for 0.19, and 2.6.16-1.2122_FC5smp on a
> Pentium
> > > 4 hyperthreading CPU.
> > >
> > > Thanks for any pointers.
> >
> > Have you looked through the firewire page on the wiki yet?
> >
> > http://www.mythtv.org/wiki/index.php/FireWire
> >
> > Firewire from my DCT-6200 has been quite stable since I did the
> > enable_p2p thingy in there for a single STB.  test-mpeg2 doesn't
> > always work, but scheduled recordings and live TV are both 100%.
>
> have you checked to make sure your not being blocked from capturing
> the channel via the 5C digital rights management system?
>
> --
> Steve
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I had the exact same problem as you and saw this somewhere and started to
play with it and now if firewire stops working I can unplug the firewire
cable, plug it back in, and then run this script and it firewire works
great:

allan at mythtv:~$ more /usr/bin/mythfwreset
#! /bin/sh
plugctl -n 0 oPCR[0].n_2p_connections=0
sleep 2
plugctl -n 0 oPCR[0].n_2p_connections=1
sleep 2
plugctl -n 0 oPCR[0].channelc
sleep 2
plugctl -n 0 oPCR[0].bcast_connection=0

Hope this helps. Stick with it firewire was tough for me to figure out but
once you get it going it works great and you really don't have to mess with
it.

Allan
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