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Live TV will not start
http://forum.linhes.org/viewtopic.php?f=14&t=4558		 Page 1 of 1
Author:  nrbond [ Fri May 13, 2005 1:29 am ]
Post subject:  Live TV will not start
Hi,

I have been trying for two weeks to get my system working and, not that I have much hair, but I have been pulling my hair out for a few days.

I got the system working and then stupidly changed something. I don't remember what that was, I was drunk, but now I cannot get Live TV to work.

I have seen the threads talking about recording something first and then all is great with your PVR-350 but not for me. I can record and then watch that stuff but I cannot ever watch live tv. I get a blank screen, the backend then times out telling me that the remote encoder not responding and then stops dead never to work again until I re-boot.

Now I am but a lowly Java architect so be nice to me please, I would appreciate any help. Also, as my system has been in pre-production(letting my wife use it) for 3 weeks now so my wife is getting a bit angry about the whole thing!
Author:  willem [ Fri May 13, 2005 2:08 am ]
Post subject: 
The difference between live tv and recordings is that live tv requires a buffer. By default it's /cache/cache on KnoppMyth. Perhaps the location is changed in your settings, or you do not have proper rights to it (user mythtv needs write rights on /cache/cache). Checking /var/log/mythtv/mythbackend.log and /home/mythtv/.xsessionerrors should give you pointers.
Another thing to check is the recording profile for live tv. Maybe somethings wrong there.
Now stay away from the alcohol before checking all this :wink:
Author:  Greg Frost [ Fri May 13, 2005 5:23 am ]
Post subject: 
I have also had problems with the starting channel (which you can set in mythtv-setup) not being a valid channel. Might be worth checking.
Author:  nrbond [ Fri May 13, 2005 2:36 pm ]
Post subject:  still no joy
I tried changing the default channel but sadly no joy.

There are no log files like the ones suggested but the /var/log/messages has

May 14 08:16:31 localhost kernel: Call Trace:
May 14 08:16:31 localhost kernel: [<e0f9d01f>] ivtv_call_i2c_client+0x12d/0x164 [ivtv]
May 14 08:16:31 localhost kernel: [<e0f9d21c>] ivtv_saa7115+0x12/0x16 [ivtv]
May 14 08:16:31 localhost kernel: [<e0fa903c>] ivtv_v4l2_ioctls+0xecd/0x10c9 [ivtv]
May 14 08:16:31 localhost kernel: [<c01437f7>] buffered_rmqueue+0x13f/0x1fd
May 14 08:16:31 localhost kernel: [<c0143ac0>] __alloc_pages+0x169/0x3b4
May 14 08:16:31 localhost kernel: [<e0fa9eec>] ivtv_v4l2_do_ioctl+0x11a/0x4f3 [ivtv]
May 14 08:16:31 localhost kernel: [<e0ecc3b5>] video_usercopy+0xae/0x119 [videodev]
May 14 08:16:31 localhost kernel: [<c014e5c5>] do_no_page+0x77/0x324
May 14 08:16:31 localhost kernel: [<c0172c22>] __d_lookup+0xda/0x103
May 14 08:16:31 localhost kernel: [<e0f9c854>] ivtv_v4l2_open+0x156/0x301 [ivtv]
May 14 08:16:31 localhost kernel: [<e0faa3f6>] ivtv_v4l2_ioctl+0x131/0x26e [ivtv]
May 14 08:16:31 localhost kernel: [<e0fa9dd2>] ivtv_v4l2_do_ioctl+0x0/0x4f3 [ivtv]
May 14 08:16:31 localhost kernel: [<e0ecc191>] video_open+0xd7/0x1cb [videodev]

Clearly this means something but not much to me!

I did wonder if lirc was upset but it moves me about ok. The directory permissions for /video/buffer are currently allowing everyone passing on the street to do whatever they like.

So sadly I am moving in the complete re-install direction.

Any help will be appreciated.

Thanks

Nigel
Author:  nrbond [ Fri May 13, 2005 11:01 pm ]
Post subject: 
I have some more diagnostics, in verbose mode the backend says,

2005-05-14 16:50:58.411 Changing from None to WatchingLiveTV
2005-05-14 16:50:58.466 Using profile 'Live TV' to record
2005-05-14 16:50:58.467 Channel(/dev/video0)::CheckSignalFull(): input = 4
2005-05-14 16:51:33.482 Couldn't read data from the capture card in 15 seconds. Stopping.

The frontend says,

2005-05-14 16:50:58.307 New DB connection, total: 2
2005-05-14 16:50:58.319 write->9 29 GET_NEXT_FREE_RECORDER[]:[]-1:
2005-05-14 16:50:58.337 write->15 21 MYTH_PROTO_VERSION 15:
2005-05-14 16:50:58.343 Using protocol version 15
2005-05-14 16:50:58.343 write->15 36 ANN Playback localhost.localdomain 0:
2005-05-14 16:50:58.351 write->15 44 QUERY_RECORDER 1[]:[]SETUP_RING_BUFFE...
2005-05-14 16:50:58.388 write->16 36 ANN Playback localhost.localdomain 0:
2005-05-14 16:50:58.395 write->17 38 ANN RingBuffer localhost.localdomain 1:
2005-05-14 16:50:58.403 write->15 33 QUERY_RECORDER 1[]:[]SPAWN_LIVETV:
2005-05-14 16:51:18.410 ReadStringList timeout (quick).
Remote encoder not responding.
2005-05-14 16:51:18.476 WriteStringList: Bad socket
2005-05-14 16:51:18.476 ReadStringList: Bad socket
Remote encoder not responding.
ASSERT: "i <= nodes" in /usr/lib/qt-3.3/include/qvaluelist.h (373)
ASSERT: "i <= nodes" in /usr/lib/qt-3.3/include/qvaluelist.h (373)
ASSERT: "i <= nodes" in /usr/lib/qt-3.3/include/qvaluelist.h (373)
ASSERT: "i <= nodes" in /usr/lib/qt-3.3/include/qvaluelist.h (373)
ASSERT: "i <= nodes" in /usr/lib/qt-3.3/include/qvaluelist.h (373)
ASSERT: "i <= nodes" in /usr/lib/qt-3.3/include/qvaluelist.h (373)
ASSERT: "i <= nodes" in /usr/lib/qt-3.3/include/qvaluelist.h (373)
ASSERT: "i <= nodes" in /usr/lib/qt-3.3/include/qvaluelist.h (373)
ASSERT: "i <= nodes" in /usr/lib/qt-3.3/include/qvaluelist.h (373)
ASSERT: "i <= nodes" in /usr/lib/qt-3.3/include/qvaluelist.h (373)
ASSERT: "i <= nodes" in /usr/lib/qt-3.3/include/qvaluelist.h (373)
ASSERT: "i <= nodes" in /usr/lib/qt-3.3/include/qvaluelist.h (373)
ASSERT: "i <= nodes" in /usr/lib/qt-3.3/include/qvaluelist.h (373)
ASSERT: "i <= nodes" in /usr/lib/qt-3.3/include/qvaluelist.h (373)
ASSERT: "i <= nodes" in /usr/lib/qt-3.3/include/qvaluelist.h (373)
2005-05-14 16:51:18.476 Output filters for this channel are: ''
2005-05-14 16:51:18.477 write->16 53 QUERY_RECORDER 1[]:[]REQUEST_BLOCK_RI...
2005-05-14 16:51:23.479 taking too long to be allowed to read..
2005-05-14 16:51:28.481 taking too long to be allowed to read..
2005-05-14 16:51:33.481 taking too long to be allowed to read..
2005-05-14 16:51:33.481 Took more than 10 seconds to be allowed to read, aborting.
Couldn't read file: rbuf://127.0.0.1:6543/video/buffer/ringbuf1.nuv
2005-05-14 16:51:33.482 Read(): reqd=128000, rcvd=0, rept=0, error=0
2005-05-14 16:51:33.483 WriteStringList: Bad socket
2005-05-14 16:51:33.483 ReadStringList: Bad socket
Remote encoder not responding.
2005-05-14 16:51:33.483 LiveTV not successfully started
2005-05-14 16:51:33.486 write->16 33 QUERY_RECORDER 1[]:[]DONE_RINGBUF:
2005-05-14 16:51:33.493 Changing from None to WatchingLiveTV
2005-05-14 16:51:33.502 Changing from None to None

By the way my wife is now officially not talking to me, which has been quite helpful in allowing me to spend my Saturday doing this :)

Help, as always, appreciated.

Nigel
Author:  nrbond [ Sat May 14, 2005 2:22 am ]
Post subject: 
I have also seen this in the log which I think is the start of the stack trace,

bttv: Unknown symbol tveeprom_read
bttv: Unknown symbol tveeprom_hauppauge_analog

Looking over the net I might need a later ivtv driver but nothing later is available on apt-get so I am a bit stuck. [not being used to compiling stuff in this environment]

Nigel
Author:  nrbond [ Sat May 14, 2005 3:55 am ]
Post subject: 
ok, sorted.

My computer could not cope with the recording and playback on the resolution i was using.

HURRAR
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