[mythtv-users] Problems with Tv-channels that doesn't always broadcast and mythtv, Please help

Tue Nov 9 12:05:37 UTC 2004

There are changes being made to resolve this problem, It might be in
CVS already but im using 0.16 so am not sure.

Instead of rebooting you can set it to record a show on a channel that
is working through the guide, then cancel the recording and it will
default to that channel when you go to watch tv again.

Hope that helps.

On Tue, 9 Nov 2004 09:34:56 +0100, Webek <bjorn at webek.net> wrote:
>  
> I will try to explain my proplem as short as possible 
>   
> We have in Sweden Ground-broadcasted channels that doesn't send  tv/video
> all 24 hours. 
> So my problem is when I change to one channel that doesnt broadcast it
> hangs/freezes and I cant do nothing but change to a terminal and kill
> mythfrontend. 
>   
> I found in the doc/faq that this is a video card driver issue. But can't
> there be made a change in mythtv so when no video sync is found it stopps
> try to sync the sound. 
>   
> I belive that it's the process of syncing audio to the video in realtime
> priority that hangs the frontend. I can't change channel or do anything. 
>   
> Does anyone know where in the mythtv code (source)  the video and audio get
> synced ? Can that be the problem ?? 
>   
> Mythfrontend starts on the last exited tv-channel. Where is this stored ? I
> have to reboot the computer if I have changed to a channel that doesn't
> broadcast since mythfrontend try's to reconnect to the channel that doesn't
> broadcast every time I start mythfrontend/livetv 
>   
> Please help me with some clue where I can solve my problem. Please! 
>   
>   
> I own a Asus TV FM card with saa 7135 and a Philips tuner (Pal) and are
> running mythtv 0.16 
>   
> Here are the logs where i start mythtv livetv on a channel that doesn't
> broadcast: 
>   
> Mythbackend
> 2004-10-04 03:20:17 MainServer::HandleAnnounce Playback
> 2004-10-04 03:20:17 adding: nalletv as a client (events: 0)
> 2004-10-04 03:20:17 MainServer::HandleAnnounce Playback
> 2004-10-04 03:20:17 adding: nalletv as a client (events: 1)
> 2004-10-04 03:20:17 MainServer::HandleAnnounce Playback
> 2004-10-04 03:20:17 adding: nalletv as a client (events: 0)
> 2004-10-04 03:20:17 MainServer::HandleAnnounce Playback
> 2004-10-04 03:20:17 adding: nalletv as a client (events: 0)
> 2004-10-04 03:20:17 adding: nalletv as a remote ringbuffer
> 2004-10-04 03:20:17 Changing from None to WatchingLiveTV
> strange error flushing buffer ...
> VIDIOCSYNC: Input/output error
> VIDIOCSYNC: Input/output error
> VIDIOCSYNC: Input/output error
> VIDIOCSYNC: Input/output error
> VIDIOCSYNC: Input/output error
> VIDIOCSYNC: Input/output error
> VIDIOCSYNC: Input/output error
> VIDIOCSYNC: Input/output error
> VIDIOCSYNC: Input/output error
> Multiple bttv errors, further messages supressed 
>   
> 
> Mythfrontend
> 2004-10-04 03:19:42 Enabled verbose msgs : important general
> 2004-10-04 03:19:45 Registering Internal as a media playback plugin.
> 2004-10-04 03:20:17 Connecting to backend server: 127.0.0.1:6543 (try 1 of
> 5)
> 2004-10-04 03:20:17 Using protocol version 13
> 2004-10-04 03:20:17 Using protocol version 13
> 2004-10-04 03:20:17 Using protocol version 13
> 2004-10-04 03:20:23 taking too long to be allowed to read..
> 2004-10-04 03:20:28 taking too long to be allowed to read..
> 2004-10-04 03:20:38 RemoteFile::Read() failed in RingBuffer::safe_read().
> 2004-10-04 03:20:49 RemoteFile::Read() failed in RingBuffer::safe_read().
> 2004-10-04 03:20:59 RemoteFile::Read() failed in RingBuffer::safe_read().
> 2004-10-04 03:20:59 Opening OSS audio device '/dev/dsp'.
> 2004-10-04 03:20:59 Audio fragment size: 4096
> 2004-10-04 03:20:59 Using XV port 53
> 2004-10-04 03:21:12 Changing from None to WatchingLiveTV
> 2004-10-04 03:21:12 Using realtime priority.
> 2004-10-04 03:21:17 Audio buffer overflow, audio data lost!
> 2004-10-04 03:21:19 Audio buffer overflow, audio data lost!
> 2004-10-04 03:21:20 Audio buffer overflow, audio data lost!
> 2004-10-04 03:21:20 RemoteFile::Read() failed in RingBuffer::safe_read().
> 2004-10-04 03:21:21 Audio buffer overflow, audio data lost!
> 2004-10-04 03:21:23 Audio buffer overflow, audio data lost!
> 2004-10-04 03:21:25 Audio buffer overflow, audio data lost!
> 2004-10-04 03:21:26 Audio buffer overflow, audio data lost!
> 2004-10-04 03:21:27 Audio buffer overflow, audio data lost!
> 2004-10-04 03:21:28 Audio buffer overflow, audio data lost!
> 2004-10-04 03:21:29 Audio buffer overflow, audio data lost!
> 2004-10-04 03:21:30 Audio buffer overflow, audio data lost!
> 2004-10-04 03:21:30 RemoteFile::Read() failed in RingBuffer::safe_read().
> 2004-10-04 03:21:31 Audio buffer overflow, audio data lost!
> 2004-10-04 03:21:32 Audio buffer overflow, audio data lost!
> 2004-10-04 03:21:33 Audio buffer overflow, audio data lost!
> 2004-10-04 03:21:34 Audio buffer overflow, audio data lost!
> 2004-10-04 03:21:35 Audio buffer overflow, audio data lost!
> 2004-10-04 03:21:36 Audio buffer overflow, audio data lost!
> 2004-10-04 03:21:38 Waited 2 seconds for data to become available, waiting
> again
> ...
> 2004-10-04 03:21:40 Waited 2 seconds for data to become available, waiting
> again
> ...
> 2004-10-04 03:21:41 RemoteFile::Read() failed in RingBuffer::safe_read(). 
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> 
> 

-- 
Regards,

~CM