[mythtv-users] Firewire strangeness

[Joe Borne]

I recently upgraded to MythDora 5 and everything went pretty smoothly.
I even noticed that my connection to my cable box via firewire was
operating more reliably than before (I installed the libavc, libiec
and libraw from source).

But yesterday the connection to the cable box stopped working. I tried
re-installing from rpm and source with no luck. I can use the 6200ch
application to change the channel on the box, and even power it on and
off with 6200pwr. I can also successfully test the connection with
firewire_tester. But test-mpeg2 gives me a zero size file every time!

This situation has persisted despite installing libavc, libiec and
libraw1394 from the current rpm's, and then removing and installing
from source, upgrading the kernel and multiple reboots.

HELP!!!

System specs and results of testing below:

System specs:
AMD FX64 dual core
2GB RAM
firewire card - uPD72874 IEEE1394 OHCI 1.1 3-port PHY-Link Ctrlr,
vendor: NEC Corporation

Mythdora 5
Fedora Core 8
kernel - 2.6.25.14-69_1.cubbi_tuxonice.fc8
ieee1394-kmdl-2.6.25.14-69_1.cubbi_tuxonice.fc8PAE-2.6.24.3-5.fc8
ieee1394-kmdl-2.6.25.14-69_1.cubbi_tuxonice.fc8-2.6.24.3-5.fc8

lsmod|grep 1394
dv1394                 18908  0
raw1394                24028  0
ohci1394               29488  1 dv1394
ieee1394               72244  3 dv1394,raw1394,ohci1394


Here are my results:

Plugreport:

Host Adapter 0
==============

Node 0 GUID 0x001a66fffe0ec6bc
------------------------------
oMPR n_plugs=1, data_rate=2, bcast_channel=63
oPCR[0] online=1, bcast_connection=0, n_p2p_connections=0
        channel=0, data_rate=2, overhead_id=0, payload=376
iMPR n_plugs=0, data_rate=2

Node 1 GUID 0x00004c0100003d09
------------------------------
libiec61883 error: error reading oMPR
libiec61883 error: error reading iMPR


firewire_tester:

Action: Attempt to fix broadcast connection 1 times, node 0
Broadcast: Testing...Success, 26 packets
Broadcast: Testing...Success, 57 packets
Broadcast: Testing...Success, 73 packets
Broadcast: Testing...Success, 210 packets
Broadcast: Testing...Success, 25 packets
Broadcast Fix: Success (already stable)


test-mpeg2:

test-mpeg2 -r 0 >>/tmp/FWtest7.ts
libiec61883 warning: Established connection on channel 0.
You may need to manually set the channel on the receiving node.
Starting to receive
^C
[root at localhost ~]# ls -lh /tmp/FWtest*
-rw-r--r-- 1 root root 161K 2008-09-09 12:29 /tmp/FWtest7.ts

However, FWtest7.ts cannot be played by mplayer, xine or vlc. All show
a black screen or nothing.


Has anyone seen this before and can anyone help?


Thanks,

J