[mythtv-users] PVR 350 AV Sync

[Nelson Butterworth]

James Pifer wrote:

>On Sun, 2003-11-30 at 23:07, Nelson Butterworth wrote:
>  
>
>>On Sun November 30 2003 3:47 pm, paulsykes at totalise.co.uk wrote:
>>    
>>
>>>Hi,
>>>
>>>I'm using a PVR-350 with the latest cvs of myth and IVTV and it appears
>>>that the audio is fractionally in front of the video.  I didn't think this
>>>was possible with the PVR-250/350 as it multiplexes the audio and video
>>>using the capture card.
>>>
>>>Is anybody else experiencing this?
>>>
>>>thanks,
>>>Paul.
>>>
>>>---- Message sent via Totalise Webmail - http://www.totalise.co.uk/
>>>      
>>>
>>I think I have seen this as well. However, I'm not using the TV-Out features 
>>yet, as I seem to have problems getting the fb driver to load. Anyone know 
>>why I can do a depmod -ae and get a clean report, but when I actually try to 
>>load the module, it chokes with several unresolved symbols?
>>
>>Here are the symbols in question.
>>
>>ivtv_clear_irq_mask
>>ivtv_debug
>>ivtv_pal
>>
>>I get the failure messages twice, as it seems that modprobe tries twice to 
>>load the module. I updated my CVS files last Wednesday, the day before 
>>Thanksgiving, I think. I don't know why I get the failures, when compiles are 
>>successful.
>>
>>At any rate, I think I am also seeing the slight video delay.
>>
>>Nelson
>>
>>
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>>    
>>
>
>Did you ever get an answer on this? I'm trying toinstall ivtv-fb on a
>new installation and having the same unreolved symbols:
>ivtv_clear_irq_mask
>ivtv_debug
>ivtv_pal
>
> I'm trying to use 031125A. 
>
>Thanks,
>James
>
>  
>
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>

Nope, nothing yet. But maybe I'll post my specs and someone'll bite.

P4-2.4B
Asus P4?533-VM micro atx mobo
512MB DDR333
Maxtor 80GB ATA133 HD
Lian-Li PC9300 micro desktop case
PVR-350 and -250 Freestyle (both work pretty well together)
Jaton (eww...) GeForce2 MX400 64MB
RH9, updated with Axel's excellent RPMs
MythTV 0.12, also from Axel
IVTV from CVS, roughly last Wednesday

I had to enable the extra Makefile config for i2c 2.8.0, and everything 
compiled OK (minus one warning, but I don't think it was ivtv-fb.o). 
Depmod -ae returns nothing, but modprobe ivtv-fb displays the unresolved 
symbols in my previous post, and apparently what James is seeing too. 
Even after a reboot, still get the same thing.

However, I just realized that I may have gotten off on a tangent from 
Paul's original post. He didn't indicate if he was using the output of 
the 350, but was commenting on the sync difference in playback through a 
normal video card. I wonder if that might have to do with a firmware 
problem? I think that in my attempts to get the 350's output working, I 
had to get a firmware.bin file so that a module could find it on load. I 
had to get the latest firmware exe from Hauppauge's site, extract it 
(utility is included in the ivtv source), and put the resultant file 
into the location indicated by the error messages. Maybe it's time for a 
new firmware version.

But then again, I may just be shooting in the dark here.

Nelson