[mythtv-users] Via KT-133 and PVR-350?

David Rees drees at greenhydrant.com
Sat Jan 10 18:07:13 EST 2004


Thomas Rokamp wrote, On 1/10/2004 9:00 AM:
>  
> Monday I will start installing a MythTV server for the first time. I 
> have been reading alot about it, and today I found this on the ivtv faq:
>  
> //quote
> Some chipsets seem to have a problem with the large amount of DMA 
> traffic that IvyTV generates combined with the large amount of DMA 
> traffic of the data being written to disk. From what I understand these 
> are known issues in linux for these chipsets. Currently the list is just 
> via chipsets; the kx133, kt133, kt266, and the kt400
> //quote
>  
> I actually have a mainboard with the Via KT-133 chipset. What problems 
> will I probably experience if any?

You will probably experience dropped frames and or ivtv driver hangs. 
Eventually the ivtv driver will probably be fixed to not hang, as it may 
be related to issues people are also having with ivtv hanging under high 
system load when using other chipsets as well.

The most reliable method I've seen so far to trigger this issue is to 
record while playing back a DVD (which presumably also generates a lot 
of DMA traffic over the PCI bus.

> And do you know any solution to them?

As for now, it doesn't seem that you are guaranteed to have problems 
because you have one of those chipsets.  Best thing to do is to try it 
and hope it works OK, if it doesn't, start shopping for another motherboard.

-Dave


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