[mythtv-users] live TV problem

[Mike Perkins]

Nikolay Elenkov wrote:
> On 02/19/10 11:41, Nikolay Elenkov wrote:
>>
>> Live TV in mythtv is not working :( Seems that question is asked a lot,
>> so I've searched, but couldn't find anything that solves my problem.
>>
>> I have a standard 878-based analog tuner card. It is configured properly
>> and works fine with kdetv and tvtime. I've added it in mythtvsetup,
>> imported the program info and channels with mythfilldatabase and can see
>> the program guide and channel numbers. However, when I click 'Watch TV' I
>> get only static and later a blue screen. Changing channels doesn't help
>> either. I've looked through the backend logs and it seems it is using the
>> right device (/dev/video0) and right channels, there are no (apparent?)
>> errors in the log.
> 
> Then only thing that seems strange is this:
> 
> GetChannelData() failed because it could not find channel number 
> 'NextChannel 0' in DB for source '1'.
> ChannelBase(2): IsTunable(Television,NextChannel 0) Failed to find 
> channel in DB on input '1'
> ChannelBase(2) Error: Setting start channel 'NextChannel 0' failed, and 
> we failed to find any suitible channels on any input.
> 
> It's not clear if this is an error or not. After that there is this,
> which seems correct (there is a channel 10 in the DB).
> 
> Channel(/dev/video0): SetChannelByString(10)
> 
> Any ideas?
> 
If it's looking for 'Nextchannel 0', that must be the value in the frequid field 
in the channel table in the database, ie there's data in there that shouldn't be.

I would guess that you had errors when doing your original scan. Sometimes you 
can get weird stuff ending up in fields. Pull up mythtv-setup, go into the 
channel editor, and verify that all fields contain values that look rational.

Another possiblity is in 'Input Connections', check that 'Starting Channel' has 
a reasonable value.

-- 

Mike Perkins