[mythtv-users] Corrupted output from PVR-150

[Michael T. Dean]

On 10/24/2008 10:57 AM, Mark Boyum wrote:
> On Fri, Oct 24, 2008 at 2:05 AM, Michael T. Dean wrote:
>   
>> On 10/24/2008 02:38 AM, Mark Boyum wrote:
>>     
>>> I recently picked up a PVR-150 for about $35 to replace the BTTV card.
>>>  Unfortunately I think I may have received a bad card.  The recordings
>>> from the new (to me) PVR-150 look like a really old tv with a bad
>>> v-hold adjustment.  After a bit of searching I adjusted the
>>> pci_latency for my SATA controller to be higher than that of the PVRs
>>> but this does not seem to help.
>>>
>>> My original PVR-150 still seams to work without issue; so I am
>>> guessing that the new card is defective.  I've attached a screenshot
>>> of what the cards output looks like just in case someone else has seen
>>> this and might know how to fix.
>>>       
>> That cap looks like it's coming from an S-Video input (as it has clean
>> edges) rather than from the analog tuner.  If so, perhaps you need to
>> reboot the STB.  I used to get similar problems with my DISH network
>> receiver unless I rebooted the receiver about 1/mo.
>>
>> Yes, I seriously rebooted my DISH receiver 1/mo--the DISH receiver that
>> I kept connected to my Myth backend that ran for months without a reboot
>> or MythTV restart (and then, MythTV only got restarted on Myth upgrade
>> and the box only got rebooted on power outages).
>>     
> Thanks for the quick reply and suggestion.  Unfortunately there is no
> STB involved.  Then clean edges on the cap are due to cropping it down
> in GIMP to achieve a small attachment size.
>
> It is really hard to describe what the mpg produced by this card is
> doing.  I'll see if I can post a clip somewhere.  My next
> trouble-shooting step will be to make the troubled card the only
> capture device in the system and see what happens.  I'll also attempt
> to access it via other applications to rule out Myth, but I highly
> doubt Myth is the culprit.
>   

Have you tried switching the input cables on the 2 cards (i.e. plug the 
RG-6 (or whatever) that's currently in the good 150 into the new "bad" 
150) to see if the issue moves to the other card (which would indicate a 
signal/noise issue).

Mike