[mythtv-users] Motorola 6200 firewire high def artifacts - Help me debug?

[Andrew Casper]

Steve -

My system does see a CPU spike as the errors are happening and just  
as the backend crashes.

I know you were looking into this a few months ago. Was there ever a  
resolution? Was there a kernel or buffer issue?

- Andrew

On Jul 23, 2006, at 11:44 PM, mythtv-users-request at mythtv.org wrote:

> Date: Sun, 23 Jul 2006 22:07:42 -0400
> From: "Steven Adeff" <adeffs.mythtv at gmail.com>
> Subject: Re: [mythtv-users] Motorola 6200 firewire high def artifacts
> 	- Help	me debug?
> To: "Discussion about mythtv" <mythtv-users at mythtv.org>
> Message-ID:
> 	<42785b900607231907t241bf8bfr8372bdc39e0f4c17 at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> On 7/18/06, greg at nodecam.com <greg at nodecam.com> wrote:
>>> I am also trying to solve an issue with a Motorola firewire box.
>>> Could you describe the artifacts you are seeing. Do they crash your
>>> backend? Have you tried switching from a point-to-point  
>>> connection to
>>> a broadcast connection? Have you tried increasing the firewire speed
>>> in MythTVSetup.
>>
>> Basically it's like a skip in the stream - the whole screen goes very
>> blocky, then resolves itself.  When watching the NHL playoffs, it was
>> doing it every 10-20 seconds during play, making the game  
>> unwatchable.
>>
>> I can't get broadcast working, and firewire speed is set to 400  
>> already
>> (though I'll have to check on that to confirm)
>>
>> The backend is still stable though, it's just frustrating not  
>> being able
>> to really use the system to record high def sports.
>>
>> I did some benchmarking on the hard drives, and they seem to be  
>> able to do
>> sequential writes plenty fast for HD - I'm wondering if I have a bad
>> firewire cable.  I guess replacing that is my next logical step.
>
> does your cpu usage spike while recording?
>
> -- 
> Steve
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