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

[Yeechang Lee]

[A somewhat belated answer to a survey question.]

Steve Adeff <adeffs at gmail.com> says:
> 1. firewire chipset being used (lspci|grep FireWire)

Agere Systems FW323 (rev 61)

> 2. your plugreport output for the Node connected to the DCT.

Node 2 GUID 0x000e5cfffe5d3a08
------------------------------
oMPR n_plugs=1, data_rate=2, bcast_channel=63
oPCR[0] online=1, bcast_connection=0, n_p2p_connections=1
        channel=63, data_rate=3, overhead_id=0, payload=376
iMPR n_plugs=0, data_rate=2

> 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=3Dperfect channel changes, 0=3Dnumbers get =
> 
> detected but rarely does it work).
> 7. a brief description of what your box does when you try and change channe=
> ls. =
> 
> 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?) a=
> nd
> > am getting qute a few mis-controled channel changes.
> >
> > it looks like whats happening is the box thinks it receives doubles of so=
> me
> > 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 =3D ch 6 gets tuned
> > 25566 =3D 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.
> 
> 

-- 
Yeechang Lee <ylee at pobox.com> | +1 650 776 7763 | San Francisco CA US