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the_crowbar
PostPosted: Mon Aug 28, 2006 5:26 pm 
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Joined: Mon Aug 28, 2006 4:50 pm
Posts: 42
I have a new install of KnoppMyth R5D1. I am using an Asus A8N-CSM MB with an nForce4 chipset. I have an Athlon64 3000+ w/ 1GB RAM and SATA HD. I had the system mostly working with Gentoo running in 64bit mode. The Firewire capture was problematic. I thought, "Hey why don't I switch to 32 bit mode and see if has been tested/works better." So I install KnoppMyth and configure my firewire capture. Once everything is working I attempt to watch live TV. Black screen for a few seconds and then back to the Myth menu. Check the log file and this is what I see:

Code:
root@mythtv:~# tail /var/log/mythtv/mythbackend.log
2006-08-28 18:38:13.745 adding: mythtv as a client (events: 0)
2006-08-28 18:38:13.779 MainServer::HandleAnnounce Monitor
2006-08-28 18:38:13.780 adding: mythtv as a client (events: 1)
2006-08-28 18:38:23.204 MainServer::HandleAnnounce Playback
2006-08-28 18:38:23.205 adding: mythtv as a client (events: 0)
2006-08-28 18:38:23.211 TVRec(1): Changing from None to WatchingLiveTV
2006-08-28 18:38:23.213 FireWireChannel: channel:784 cmds: 0x487c27, 0x487c28, 0x487c24
2006-08-28 18:38:24.887 Firewire: Initializing Port: 0, Node: 1, Speed: 100Mbps
2006-08-28 18:38:24.891 Firewire: Creating P2P Connection with Node: 1
/usr/bin/mythbackend: symbol lookup error: /usr/lib/libiec61883.so.0: undefined symbol: raw1394_bandwidth_modify
root@mythtv:~#                           


Googling for the error turns up precious little. It seems that the raw1394_bandwidth_modify option was added to libraw1394 in version 1.2.0. So I check what version I have installed:

Code:
root@mythtv:~# apt-cache show libraw1394
Package: libraw1394
Status: install ok installed
Priority: extra
Section: checkinstall
Installed-Size: 327
Maintainer: cwatson@linkline.com
Architecture: i386
Version: 1.2.0-1
Description: Libraw1394


Looks good, I have a recent enough version. Maybe I need to recompile Myth? I will search how to do that, but if anyone has the answer please let me know.

Thanks,
James
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steeve
 Post subject:
PostPosted: Tue Aug 29, 2006 3:06 pm 
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Joined: Thu Jan 13, 2005 9:55 am
Posts: 135
Location: Decatur, Ga., USA
James,
I'll be keeping an eye on this thread, as I, too, am seeing the exact same error message, and the result is a crashed backend. I can restart it easily enough, and the firewire stream actually worked, but only once in the dozen or so tests I've run. My firewire feed is from a DCT-6200 HD cable box from Comcast, connected to a USB/Firewire combo PCI card.

-sTv

_________________
R7.3 Backend
CPU: 1.8 GHz
RAM: 2Gb
Drives: 500Gb IDE; IDE DVD-RW
Mobo: eMachines
Tuners (Analog): PVR-250
Tuners (Digital): DCT-6200 Motorola Cable Box, HDHomeRun (OTA + cable)
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steeve
 Post subject:
PostPosted: Tue Aug 29, 2006 4:10 pm 
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Joined: Thu Jan 13, 2005 9:55 am
Posts: 135
Location: Decatur, Ga., USA
James,
update: I got firewire to work by changing from P2P to Broadcast. Consider this preliminary as my backend is too underpowered to play HD via firewire. My MacIntel laptop can do it and it works fine there. I'm working on upgrading one of my KnoppMyth frontends to R5D1 to see if I'm schizoid, or just ready to run for office...:shock:

-sTv

_________________
R7.3 Backend
CPU: 1.8 GHz
RAM: 2Gb
Drives: 500Gb IDE; IDE DVD-RW
Mobo: eMachines
Tuners (Analog): PVR-250
Tuners (Digital): DCT-6200 Motorola Cable Box, HDHomeRun (OTA + cable)
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steeve
 Post subject:
PostPosted: Tue Aug 29, 2006 8:19 pm 
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Joined: Thu Jan 13, 2005 9:55 am
Posts: 135
Location: Decatur, Ga., USA
steeve wrote:
James,
update: I got firewire to work by changing from P2P to Broadcast. Consider this preliminary as my backend is too underpowered to play HD via firewire. My MacIntel laptop can do it and it works fine there. I'm working on upgrading one of my KnoppMyth frontends to R5D1 to see if I'm schizoid, or just ready to run for office...:shock:

-sTv


James,
Help me. I'm answering my own posts but I keep adressing them to you... 8)
I've finished upgrading my KnoppMyth frontend and firewire works wonderfully, very few oddities (the biggest niggle is that some HD channels are off-center to the right, and the OSD is off to the right just a bit as well...I'm using "XF86Config-4.nvidia-tvout.sample" as my "XF86Config-4" (FX-5200).
My frontend:

ASUS PC-DL Deluxe mobo rev 1.05
dual 2.4GHz Xeon CPU (Hyperthreading enabled)
1Gb RAM
13Gb 5400rpm IDE hard drive
FX5200 PCI
500 Watt PSU
Pioneer DVD-ROM
R5D1

-sTv

_________________
R7.3 Backend
CPU: 1.8 GHz
RAM: 2Gb
Drives: 500Gb IDE; IDE DVD-RW
Mobo: eMachines
Tuners (Analog): PVR-250
Tuners (Digital): DCT-6200 Motorola Cable Box, HDHomeRun (OTA + cable)
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the_crowbar
 Post subject:
PostPosted: Thu Aug 31, 2006 10:12 am 
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Joined: Mon Aug 28, 2006 4:50 pm
Posts: 42
sTv,

Sorry I have been too busy to work on my Myth box for the last day or two.

I tried setting my FireWire to broadcast and that did not help things. Here is my log:
Code:
root@mythtv:~# tail -n 50 /var/log/mythtv/mythbackend.log
2006-08-31 12:06:07.537 Using runtime prefix = /usr
2006-08-31 12:06:07.550 New DB connection, total: 1
2006-08-31 12:06:07.553 Connected to database 'mythconverg' at host: localhost
2006-08-31 12:06:07.556 Current Schema Version: 1123
Starting up as the master server.
2006-08-31 12:06:07.579 New DB connection, total: 2
2006-08-31 12:06:07.580 Connected to database 'mythconverg' at host: localhost
2006-08-31 12:06:07.582 FireWireChannel: allocated raw1394 handle for port 0
2006-08-31 12:06:07.584 FireWireChannel: channel:784 cmds: 0x487c27, 0x487c28, 0x487c24
2006-08-31 12:06:09.096 New DB scheduler connection
2006-08-31 12:06:09.097 Connected to database 'mythconverg' at host: localhost
2006-08-31 12:06:09.100 mythbackend version: 0.19.20060121-2 www.mythtv.org
2006-08-31 12:06:09.100 Enabled verbose msgs:  important general
2006-08-31 12:06:09.101 AutoExpire: Found 1 recorders w/max rate of 138 MiB/min
2006-08-31 12:06:09.102 AutoExpire: Required Free Space: 3.0 GB w/freq: 10 min
2006-08-31 12:06:11.101 Reschedule requested for id -1.
2006-08-31 12:06:11.179 Scheduled 0 items in 0.1 = 0.08 match + 0.00 place
2006-08-31 12:06:11.182 Seem to be woken up by USER
2006-08-31 12:06:38.551 MainServer::HandleAnnounce Monitor
2006-08-31 12:06:38.553 adding: mythtv as a client (events: 0)
2006-08-31 12:06:38.568 MainServer::HandleAnnounce Monitor
2006-08-31 12:06:38.569 adding: mythtv as a client (events: 1)
2006-08-31 12:06:38.580 MainServer::HandleAnnounce Playback
2006-08-31 12:06:38.581 adding: mythtv as a client (events: 0)
2006-08-31 12:06:38.589 TVRec(1): Changing from None to WatchingLiveTV
2006-08-31 12:06:38.591 FireWireChannel: channel:784 cmds: 0x487c27, 0x487c28, 0x487c24
2006-08-31 12:06:40.162 Firewire: Initializing Port: 0, Node: 1, Speed: 100Mbps
2006-08-31 12:06:40.166 Firewire: Creating Broadcast Connection with Node: 1
2006-08-31 12:06:40.169 Firewire: Changing Speed 200Mbps -> 100Mbps
2006-08-31 12:06:46.727 TVRec(1): Changing from WatchingLiveTV to None
2006-08-31 12:06:55.171 Firewire: No Input in 15 seconds [P:0 N:1] (select)
2006-08-31 12:06:55.175 Finished recording WYFF News 4 at Noon: channel 1784

Just to check my firewire I ran plugreport:
Code:
root@mythtv:~# plugreport
Host Adapter 0
==============

Node 0 GUID 0x0011d800007d9397
------------------------------
libiec61883 error: error reading oMPR
libiec61883 error: error reading iMPR

Node 1 GUID 0x001180fffef27ee5
------------------------------
oMPR n_plugs=1, data_rate=2, bcast_channel=63
oPCR[0] online=1, bcast_connection=0, n_p2p_connections=0
        channel=63, data_rate=0, overhead_id=0, payload=376
iMPR n_plugs=0, data_rate=2

Everything looks good there. I am really at a loss now. I will try to unplug the power to the DCT6200 and then restart the computwer.

Thanks,
James
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the_crowbar
 Post subject:
PostPosted: Thu Aug 31, 2006 10:24 am 
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Joined: Mon Aug 28, 2006 4:50 pm
Posts: 42
LiveTV is now working. I pulled the power from the cable box and then re-attached the power cord.

First I checked the firwire node:
Code:
root@mythtv:~# plugreport
Host Adapter 0
==============

Node 0 GUID 0x001180fffef27ee5
------------------------------
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 0x0011d800007d9397
------------------------------
libiec61883 error: error reading oMPR
libiec61883 error: error reading iMPR


So my cable box has switched from node1 to node0. I stopped mythbackend (the frontend was still running at the main menu):
Code:
root@mythtv:~# /etc/init.d/mythtv-backend stop
Stopping MythTV server: mythbackend .

I then went throught mysql to change the firewire node (the mythtv-setup gui would have been slower):
Code:
root@mythtv:~# mysql
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 153 to server version: 4.0.22-log

Type 'help;' or '\h' for help. Type '\c' to clear the buffer.

mysql> use mythconverg;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed
mysql> update capturecard set firewire_node = '0';
Query OK, 1 row affected (0.00 sec)
Rows matched: 1  Changed: 1  Warnings: 0

mysql> \q
Bye

Last thing I needed to do was restart the backend.
Code:
root@mythtv:~# /etc/init.d/mythtv-backend start
Starting MythTV server: mythbackend.

That is all I have time to try right now. Maybe tonight after work I can try something else.

It does appear that changing Point-To-Point to Broadcast will allow the R5D1 release of KnoppMyth to work with a firewire cable box. Accordingh to the Myth wiki if you have more than one firewire cable box broadcast may not work.
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afrosheen
 Post subject:
PostPosted: Thu Sep 14, 2006 12:30 am 
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Joined: Sat Mar 26, 2005 3:49 pm
Posts: 290
Nice post. I had a few strands of hair left on my head right before I switched to an encrypted channel by accident and now I can't get it to tune another channel.

And I was this . . close.
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