[mythtv-users] Lacking TV signal

Per Jørgensen myth at pbj-design.dk
Wed Mar 5 19:35:45 UTC 2008


Well.
There's no messages in the syslog regarding to MythTV at all.

Unfortunably I'm leaving home for the weekend - So I'll look into it 
monday - and post the messages in here !
Thanks for the suggestons - I'll hope it'll solve the problem!

Per Jørgensen

Nick Morrott skrev:
> On 05/03/2008, Per Jørgensen <myth at pbj-design.dk> wrote:
>   
>> Nick Morrott skrev:
>>
>>     
>>> On 04/03/2008, Per Jørgensen <myth at pbj-design.dk> wrote:
>>>       
>>  >
>>  > <snipped log>
>>  >
>>  >
>>  >>  But 1time pr 2minuts - the Signal Freezes - for 2-3 sec and then
>>  >>  continues ??
>>  >>
>>  >>  What can that be - and what can I do to solve this problem!
>>  >>
>>  >
>>  > Are there any ivtv messages in the syslog (DMA issues maybe)? Perhaps
>>  > you could bring up a terminal and run 'top' whilst recording to see
>>  > what your system load is doing.
>>  >
>>
>> No errors in syslog at all with anything that have somthing to do with
>>  MythTV on the backend Machine
>>
>>     
>>> Are your MythTV database and recording directory located on the same partition?
>>>       
>>  >
>>  >
>>
>> No. I have a root partition for OS sys, and mounted 3 different discs in
>>  /storage --> music,movies and records.
>>  So they shouldn't be bothering each other?
>>     
>
> In that case, it's much less likely you would see IO issues between
> writing to the DB and to your storage disc.
>
> Some other things you can try:
>
> i) with mythbackend stopped, run something like 'cat /dev/video0 >
> mplayer' to display a realtime feed from the PVR card (repeat it for
> both inputs) and see if there are any breakups/pauses in the video
> stream
>
> ii) check 'cat /proc/interrupts' to see if there may be devices
> conflicting with the PVR card.
>
> iii) bring up a terminal and run 'top' whilst recording to see how
> your system load varies
>
> iv) are you connecting your receivers to the PVR-500 using only
> composite/S-Video video output. As far as I know, the PVR-500 does not
> accept RGB video directly.
>
>   



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