[mythtv-users] DCT-6200 Firewire issue User Database

[Big Wave Dave]

Did you ever come up with any conclusions or suggestions on an
"optimal" configuration? Perhaps a recommended FireWire chipset?

Dave

On 12/12/05, Steve Adeff <adeffs at gmail.com> wrote:
> I'm trying to figure out the issue with this firewire thing. My laptop is
> perfectly accurate when changing channels but my mythbox isn't. theres a
> couple differences between the two though. Since this comes up so much as a
> problem for people I want to start collecting information on the issue to see
> if I can find out where the problem is.
>
> Could anyone that is using firewire to control a Motorola DCT-6xxx series
> cable box respond to me off list with the following info:
> 1. firewire chipset being used (lspci|grep FireWire)
> 2. your plugreport output for the Node connected to the DCT.
> 3. the output from a 6200ch -v channel change
> 4. Your Kernel (uname -r)
> 5. Your 'modinfo raw1394' output
> 6. your accuracy rate (0 - 5, 5=perfect channel changes, 0=numbers get
> detected but rarely does it work).
> 7. a brief description of what your box does when you try and change channels.
> I have a brief description of what happens to me below in the quoted email.
>
> Hopefully we can figure this out and end the problem.
>
> --
> Steve
>
> On Monday 12 December 2005 13:12, Steve Adeff wrote:
> > On Monday 12 December 2005 10:50, Frank Lynch wrote:
> > > On 11/30/05, Steve Adeff <adeffs at gmail.com> wrote:
> > > > I wrote a script that would change the channel +1 run test-mpeg and if
> > > > data was received write the channel and "ok" in a text file. This was
> > > > so I could quickly figure out what channels were 5C'd for me, through
> > > > the whole script I didn't run into a channel change error. I then
> > > > played around with it (in awe that it actually worked of course) and
> > > > again had no issues. all through p2p.
> > >
> > > Hi Steve,
> > > Would you mind sharing your script with the list?
> > > I'm in the process of setting up a firewire connection to my cable
> > > box, and your script could save me quite a bit of time (as opposed to
> > > going through and manually finding out which channels are 5C'd).
> > > thanks,
> > > --Frank
> >
> > i would, but I think I deleted it (ie. I can't find it...).
> >
> > whats funny is that now that I have a permanent Myth setup with my cable
> > box using 6200ch to tune the channels I've noticed a lot of mis-changes.
> >
> > I'm sitting here ssh'd in to the machine running 6200ch over and over
> > trying different channels (this box is p2p only which may be of issue?) and
> > am getting qute a few mis-controled channel changes.
> >
> > it looks like whats happening is the box thinks it receives doubles of some
> > numbers. This will either cause the box to think its receiving 4 or 5
> > numbers.
> > ie. tell it to tune to 256 and when it errors I get:
> > 255   <- no 6 even gets sent!
> > 2556 = ch 6 gets tuned
> > 25566 = ch 66 gets tuned.
> >
> > so far its usually the middle # that gets repeated but I've had the third
> > number repeated occasionally.
> >
> > Which leads me to think that perhaps its something wrong with
> > libavc1394/libraw1394 or the 6200ch program.
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