[mythtv-users] Turning on Bus Mastering for PVR-250

[Aleaxander]

Donoghue, Jay wrote:

> 
>>-----Original Message-----
>>From: Aleaxander [mailto:alex at carbonated.com]
>>Sent: Tuesday, December 02, 2003 2:42 AM
>>To: mythtv-users at mythtv.org
>>Subject: [mythtv-users] Turning on Bus Mastering for PVR-250
>>
>>Hi Everyone,
>>
>>I'm following Jarod's guide in setting up a second MythTV system
> 
> (first
> 
>>one works great, thanks Jarod and Axel!), but I'm stuck on setting up
>>ivtv.  In searching the mail archive, I think I have figured out the
>>possible problem, but have been unable to fix it.  It looks like my
>>PVR-250 is not being assigned an IRQ number.  I get the following
>>information on the card from my system:
>>
>>00:07.0 Multimedia video controller: Internext Compression Inc:
> 
> Unknown
> 
>>device 0016 (rev 01)
>>Subsystem: Hauppauge computer works Inc.: Unknown device 4009
>>Flags: medium devsel
>>Memory at 20000000 (32 bit, prefetchable)[disabled][size=64M]
>>Capabilities: <available only to root>
>>
>>That part about [disabled] seems wrong : ).  Based on what I've read
> 
> in
> 
>>prior posts on the list, I imagine that my motherboard, MSI K7T266
>>Pro-RU, is not doing Bus Mastering, even though reviews of the board
> 
> say
> 
>>that all the PCI slots on it have Bus Mastering...  I've tried moving
>>the PVR-250 to every PCI slot on the motherboard in the hopes that it
>>will start working, but none of them seem to assign an IRQ to the
> 
> card.
> 
>>  Looking through the BIOS, I don't see anything relating to Bus
>>Mastering.  I've e-mailed MSI support to see if there is an option in
>>the BIOS that I'm missing to turn on Bus Mastering, but I haven't
> 
> heard
> 
>>back from them yet and I'm hoping that someone on the user-list will
>>have some idea what is wrong or how to turn on Bus Mastering (if this
> 
> is
> 
>>actually the problem).
>>
>>Thanks,
>>
>>-Alex
> 
> 
> 
> I had this problem with one of my motherboards.  Try either moving the
> card to a different PCI slot, since they may not all support bus
> mastering.  Or, you can try and force bus mastering using the script
> found at http://www.xfree86.org/4.1.0/DRI9.html
> 

I've tried moving the card to every PCI slot, but it still does not get 
assigned an IRQ, and I noticed that on reviews for the motherboard that 
they say that all the PCI slots should support Bus Mastering.  I'll take 
a look at the script tonight and see if that helps.

Thanks!

-Alex