[mythtv-users] PVR 250 problems

Stephen Tait tait at digitallaw.co.uk
Fri Dec 10 18:44:05 UTC 2004

At 13:09 10/12/2004 -0500, you wrote:
>So...my observations are that my video card and the pvr 250 seem to have 
>the same IRQ # and the ivtv Error -6 on initialization message.
>Does anyone know why I'm getting this? What is "bus mastering" and how do 
>I "enable it"? I've seen some other post that mention the PnP settings in 
>the BIOS. I'm not sure what my settings are right now (I'm at work), but 
>what should they be? Should PnP OS be "yes" or "no"?
>Any one have any other ideas?

Switching the PVR-250 to another PCI slot usually solves this; most mobo 
manuals will tell you which PCI slots share IRQ's with each other and with 
onboard devices. Ideally, both your GFX card and the PVR require an IRQ 
each so that they can be bus masters. Devices like USB controllers and 
sound cards don't thrash the bus so much and are happy sharing IRQ's with 
each other.

Failing that, you can manually assign IRQ's to devices in the BIOS. 

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