linuxaudio.org

On 01/02/2013 12:08 PM, Len Ovens wrote:

quoted text
> I don't know how useful this will be. My MB, an A-bit AC7 (10 years old?),

> has the option to turn off IRQs for USB and/or video. My first thought was

> that would not be useful, but it turns out what it does is turn of the

> bios IRQ selection. This means the Linux kernel has to do this... and the

> Linux kernel does a better job of allocating IRQs than the bios does. The

> ehci IRQ is now on it's own (USB 2.0) where it used to be lumped on 16

> with 4 other things. eth0 has it's own irq too, as do both my audio cards.

> I was still able to boot from a USB 2 device as well.

>

> So in the case of finding PCI slots that give solo IRQs, it is worth

> playing with the bios settings, even things that do not make sense.

That's interesting! Here I've always thought that it was turning off the

IRQ (disabling the device)!
--

David

gnome@hawaii.rr.com

authenticity, honesty, community

http://clanjones.org/david/

http://dancing-treefrog.deviantart.com/

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