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blank screen in WatchTV in MythTV [solved]
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TheWitePony
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Joined: 04 Feb 2004
Posts: 211

PostPosted: Thu Dec 08, 2005 9:23 pm    Post subject: blank screen in WatchTV in MythTV [solved] Reply with quote

Ok, I've got to the point where I'm trying to get mythfrontend working. mythfilldatabase seemed to work, however when I startup mythfrontend and go into WatchTV I just get a blank screen.

Here is the output when I statup mythfrontend and then go into WatchTV:
Code:

2005-12-08 16:11:06.262 New DB connection, total: 1
Total desktop width=1280, height=1024, numscreens=1
2005-12-08 16:11:06.273 Using screen 0, 1280x1024 at 0,0
2005-12-08 16:11:06.278 mythfrontend version: 0.18.1.20050510-1 www.mythtv.org
2005-12-08 16:11:06.278 Enabled verbose msgs : important general
2005-12-08 16:11:06.456 Switching to square mode (G.A.N.T.)
2005-12-08 16:11:07.015 Registering Internal as a media playback plugin.
mythtv: could not connect to socket
mythtv: No such file or directory
lirc_init failed for mythtv, see preceding messages
2005-12-08 16:11:12.688 New DB connection, total: 2
2005-12-08 16:11:12.723 Connecting to backend server: 127.0.0.1:6543 (try 1 of 5)
2005-12-08 16:11:12.744 Using protocol version 15
2005-12-08 16:11:12.817 Using protocol version 15
2005-12-08 16:11:13.248 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:13.476 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:13.704 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:13.932 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:14.156 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:14.380 RemoteFile::Read() failed in RingBuffer::safe_read().
Couldn't read file: rbuf://127.0.0.1:6543/mnt/store//ringbuf1.nuv
2005-12-08 16:11:14.416 LiveTV not successfully started
2005-12-08 16:11:14.444 Changing from None to WatchingLiveTV
2005-12-08 16:11:14.456 Changing from None to None2005-12-08 16:11:06.262 New DB connection, total: 1
Total desktop width=1280, height=1024, numscreens=1
2005-12-08 16:11:06.273 Using screen 0, 1280x1024 at 0,0
2005-12-08 16:11:06.278 mythfrontend version: 0.18.1.20050510-1 www.mythtv.org
2005-12-08 16:11:06.278 Enabled verbose msgs : important general
2005-12-08 16:11:06.456 Switching to square mode (G.A.N.T.)
2005-12-08 16:11:07.015 Registering Internal as a media playback plugin.
mythtv: could not connect to socket
mythtv: No such file or directory
lirc_init failed for mythtv, see preceding messages
2005-12-08 16:11:12.688 New DB connection, total: 2
2005-12-08 16:11:12.723 Connecting to backend server: 127.0.0.1:6543 (try 1 of 5)
2005-12-08 16:11:12.744 Using protocol version 15
2005-12-08 16:11:12.817 Using protocol version 15
2005-12-08 16:11:13.248 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:13.476 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:13.704 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:13.932 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:14.156 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:14.380 RemoteFile::Read() failed in RingBuffer::safe_read().
Couldn't read file: rbuf://127.0.0.1:6543/mnt/store//ringbuf1.nuv
2005-12-08 16:11:14.416 LiveTV not successfully started
2005-12-08 16:11:14.444 Changing from None to WatchingLiveTV
2005-12-08 16:11:14.456 Changing from None to None
2005-12-08 16:11:14.488 Using protocol version 15
2005-12-08 16:11:14.668 Using protocol version 15
2005-12-08 16:11:14.844 Using protocol version 15
2005-12-08 16:11:15.020 Using protocol version 15
2005-12-08 16:11:15.196 Using protocol version 15
2005-12-08 16:11:15.376 Using protocol version 15
2005-12-08 16:11:15.544 Using protocol version 15
2005-12-08 16:11:15.720 Using protocol version 15
2005-12-08 16:11:15.896 Using protocol version 15
2005-12-08 16:11:16.072 Using protocol version 15
2005-12-08 16:11:16.248 Using protocol version 15
2005-12-08 16:11:16.424 Using protocol version 15
2005-12-08 16:11:16.496 Using protocol version 15
2005-12-08 16:11:16.912 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:17.136 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:17.360 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:17.584 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:17.808 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:18.032 RemoteFile::Read() failed in RingBuffer::safe_read().
Couldn't read file: rbuf://127.0.0.1:6543/mnt/store//ringbuf2.nuv
2005-12-08 16:11:18.068 LiveTV not successfully started
2005-12-08 16:11:18.096 Changing from None to WatchingLiveTV
2005-12-08 16:11:18.104 Changing from None to None
2005-12-08 16:11:18.136 Using protocol version 15
2005-12-08 16:11:18.316 Using protocol version 15
2005-12-08 16:11:18.484 Using protocol version 15
2005-12-08 16:11:18.660 Using protocol version 15
2005-12-08 16:11:18.872 Using protocol version 15
2005-12-08 16:11:19.048 Using protocol version 15
2005-12-08 16:11:19.224 Using protocol version 15
2005-12-08 16:11:19.400 Using protocol version 15
2005-12-08 16:11:19.576 Using protocol version 15
2005-12-08 16:11:19.772 Using protocol version 15
2005-12-08 16:11:19.948 Using protocol version 15
2005-12-08 16:11:20.124 Using protocol version 15
2005-12-08 16:11:20.196 Using protocol version 15
2005-12-08 16:11:20.612 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:20.836 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:21.060 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:21.284 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:21.508 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:21.732 RemoteFile::Read() failed in RingBuffer::safe_read().
Couldn't read file: rbuf://127.0.0.1:6543/mnt/store//ringbuf1.nuv
2005-12-08 16:11:21.772 LiveTV not successfully started
2005-12-08 16:11:21.804 Changing from None to WatchingLiveTV
2005-12-08 16:11:21.812 Changing from None to None
2005-12-08 16:11:21.852 Using protocol version 15
2005-12-08 16:11:22.028 Using protocol version 15
2005-12-08 16:11:22.204 Using protocol version 15
2005-12-08 16:11:22.380 Using protocol version 15
2005-12-08 16:11:22.556 Using protocol version 15
2005-12-08 16:11:22.732 Using protocol version 15
2005-12-08 16:11:22.908 Using protocol version 15
2005-12-08 16:11:23.084 Using protocol version 15
2005-12-08 16:11:23.260 Using protocol version 15
2005-12-08 16:11:23.436 Using protocol version 15
2005-12-08 16:11:23.612 Using protocol version 15
2005-12-08 16:11:23.788 Using protocol version 15

2005-12-08 16:11:14.488 Using protocol version 15
2005-12-08 16:11:14.668 Using protocol version 15
2005-12-08 16:11:14.844 Using protocol version 15
2005-12-08 16:11:15.020 Using protocol version 15
2005-12-08 16:11:15.196 Using protocol version 15
2005-12-08 16:11:15.376 Using protocol version 15
2005-12-08 16:11:15.544 Using protocol version 15
2005-12-08 16:11:15.720 Using protocol version 15
2005-12-08 16:11:15.896 Using protocol version 15
2005-12-08 16:11:16.072 Using protocol version 15
2005-12-08 16:11:16.248 Using protocol version 15
2005-12-08 16:11:16.424 Using protocol version 15
2005-12-08 16:11:16.496 Using protocol version 15
2005-12-08 16:11:16.912 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:17.136 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:17.360 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:17.584 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:17.808 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:18.032 RemoteFile::Read() failed in RingBuffer::safe_read().
Couldn't read file: rbuf://127.0.0.1:6543/mnt/store//ringbuf2.nuv
2005-12-08 16:11:18.068 LiveTV not successfully started
2005-12-08 16:11:18.096 Changing from None to WatchingLiveTV
2005-12-08 16:11:18.104 Changing from None to None
2005-12-08 16:11:18.136 Using protocol version 15
2005-12-08 16:11:18.316 Using protocol version 15
2005-12-08 16:11:18.484 Using protocol version 15
2005-12-08 16:11:18.660 Using protocol version 15
2005-12-08 16:11:18.872 Using protocol version 15
2005-12-08 16:11:19.048 Using protocol version 15
2005-12-08 16:11:19.224 Using protocol version 15
2005-12-08 16:11:19.400 Using protocol version 15
2005-12-08 16:11:19.576 Using protocol version 15
2005-12-08 16:11:19.772 Using protocol version 15
2005-12-08 16:11:19.948 Using protocol version 15
2005-12-08 16:11:20.124 Using protocol version 15
2005-12-08 16:11:20.196 Using protocol version 15
2005-12-08 16:11:20.612 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:20.836 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:21.060 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:21.284 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:21.508 RemoteFile::Read() failed in RingBuffer::safe_read().
2005-12-08 16:11:21.732 RemoteFile::Read() failed in RingBuffer::safe_read().
Couldn't read file: rbuf://127.0.0.1:6543/mnt/store//ringbuf1.nuv
2005-12-08 16:11:21.772 LiveTV not successfully started
2005-12-08 16:11:21.804 Changing from None to WatchingLiveTV
2005-12-08 16:11:21.812 Changing from None to None
2005-12-08 16:11:21.852 Using protocol version 15
2005-12-08 16:11:22.028 Using protocol version 15
2005-12-08 16:11:22.204 Using protocol version 15
2005-12-08 16:11:22.380 Using protocol version 15
2005-12-08 16:11:22.556 Using protocol version 15
2005-12-08 16:11:22.732 Using protocol version 15
2005-12-08 16:11:22.908 Using protocol version 15
2005-12-08 16:11:23.084 Using protocol version 15
2005-12-08 16:11:23.260 Using protocol version 15
2005-12-08 16:11:23.436 Using protocol version 15
2005-12-08 16:11:23.612 Using protocol version 15
2005-12-08 16:11:23.788 Using protocol version 15
...

It continues to print this indefinatly until I stop the process.

mythbackend is runnning and the directory /mnt/store exists and should be accessable by anyone.

I've also done the cat /dev/video0 > vid.mpg test and it captures just fine, so its not a problem with my hardware or the ivtv drivers. Not that it should matter, but I'm using a MCE PVR-500 by the way.

Just for reference, here is my output from mythfilldatabase. It looks like it ran ok.
Code:

2005-12-08 16:19:37.209 New DB connection, total: 1
2005-12-08 16:19:37.224 New DB connection, total: 2
Refreshing Tomorrow's data
2005-12-08 16:19:37.226 New DB DataDirect connection
--16:19:37--  http://datadirect.webservices.zap2it.com/tvlistings/xtvdService
           => `-'
Resolving datadirect.webservices.zap2it.com... 206.18.98.160
Connecting to datadirect.webservices.zap2it.com|206.18.98.160|:80... connected.
HTTP request sent, awaiting response... 401 Unauthorized
Connecting to datadirect.webservices.zap2it.com|206.18.98.160|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [text/xml]

    0K .......... .......... .......... .......... .......... ??% 26.8K       
   50K .......... .......... .......... .......... .......... ??% 87.3K       
  100K .......... .......... .......... .......... .......... ??%  113K       
  150K .......... .......... .......... .......... .......... ??%  134K       
  200K .......... .......... .......                          ??%  215K       

16:19:41 (67.23 KB/s) - `-' saved [232993]

Retrieving datadirect data...
Grabbing data for Thu Dec 8 2005 offset 1
From : Fri Dec 9 05:00:00 2005 To : Sat Dec 10 05:00:00 2005 (UTC)
Your subscription expires on 03/07/06 16:41:54
Grab complete.  Actual data from Fri Dec 9 05:00:00 2005 to Sat Dec 10 05:00:00 2005 (UTC)
Clearing data for source...
Clearing from Fri Dec 9 00:00:00 2005 to Sat Dec 10 00:00:00 2005 (localtime)
2005-12-08 16:20:04.077 New DB connection, total: 3
2005-12-08 16:20:04.081 New DB connection, total: 4
Data for source cleared...
Main temp tables populated.  Updating myth channels...
Updating icons for sourceid: 1
Channels updated..  Updating programs...
Data is already present for Thu Dec 8 2005, skipping
Data is already present for Sat Dec 10 2005, skipping
Data is already present for Sun Dec 11 2005, skipping
Data is already present for Mon Dec 12 2005, skipping
Data is already present for Tue Dec 13 2005, skipping
Data is already present for Wed Dec 14 2005, skipping
Data is already present for Thu Dec 15 2005, skipping
Data is already present for Fri Dec 16 2005, skipping
Data is already present for Sat Dec 17 2005, skipping
Data is already present for Sun Dec 18 2005, skipping
Data is already present for Mon Dec 19 2005, skipping
Data is already present for Tue Dec 20 2005, skipping
Data is already present for Wed Dec 21 2005, skipping
Adjusting program database end times...
0 replacements made.
Marking repeats...found 1612
Unmarking repeats from grabber that fall within our new episode window...found 7
2005-12-08 16:20:12.815 Connecting to backend server: 127.0.0.1:6543 (try 1 of 5)
2005-12-08 16:20:12.832 Using protocol version 15


Any ideas?


Last edited by TheWitePony on Sat Dec 10, 2005 4:01 pm; edited 1 time in total
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TheWitePony
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Joined: 04 Feb 2004
Posts: 211

PostPosted: Fri Dec 09, 2005 4:26 pm    Post subject: Reply with quote

bump
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phsdv
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Joined: 13 Mar 2005
Posts: 372
Location: Europe

PostPosted: Sat Dec 10, 2005 7:54 am    Post subject: Reply with quote

On my working system I get:
Code:
2005-12-10 08:52:03.178 New DB connection, total: 2
2005-12-10 08:52:03.227 Connecting to backend server: 192.168.0.2:6543 (try 1 of 5)
2005-12-10 08:52:03.235 Using protocol version 15
2005-12-10 08:52:03.264 Using protocol version 15
2005-12-10 08:52:09.469 Using XV port 52
2005-12-10 08:52:12.304 Realtime priority would require SUID as root.
2005-12-10 08:52:12.326 Changing from None to WatchingLiveTV
2005-12-10 08:52:14.166 Video timing method: USleep with busy wait

So there must be somthing wrong with your ring buffer:
Code:
rbuf://127.0.0.1:6543/mnt/store//ringbuf1.nuv

Can you stop mythbackend and check if the nfslockfile is present? When the backend is stopped it should not be there. Just remvoe this file and restart the backend.
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TheWitePony
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PostPosted: Sat Dec 10, 2005 4:00 pm    Post subject: Reply with quote

You know, I just rebooted the whole computer, and what do you know? It works now. Not sure why though.
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thechris
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Joined: 12 Oct 2003
Posts: 1203

PostPosted: Sun Dec 11, 2005 9:03 am    Post subject: Reply with quote

http://gentoo-wiki.com/HARDWARE_PVR_500_Setup

this is my guide to the PVR 500. my guess is that mythtv wasn't tuned to any specific channel and you reloaded the module, or ivtv came up with one tuner as a "no tuner". if you have other problems, refer to the guide.
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HW problems. It's a VIA thing.
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