[SLL] How can I specify IRQ allocation? i915 video and 3ware RAID sharing IRQ

2010-07-28 Thread Phil Mocek
Until today, I haven't found the need to concern myself with IRQ settings in almost a decade, but I have a 3ware 9650SE RAID controller and Intel 915 video sharing the same IRQ, and I'm experiencing both very slow disk access and Xorg freezing. This is on a new installation of Ubuntu Lucid

Re: [SLL] How can I specify IRQ allocation? i915 video and 3ware RAID sharing IRQ

2010-07-28 Thread Ralph Sims
Did you try to disable plug-and-play? On some of the hardware RAIDs I've seen, there's a way to access the RAID BIOS and twiddle the knobs. Do you have that option?

Re: [SLL] How can I specify IRQ allocation? i915 video and 3ware RAID sharing IRQ

2010-07-28 Thread Phil Mocek
On Wed, Jul 28, 2010 at 04:12:41PM -0700, Ralph Sims wrote: Did you try to disable plug-and-play? I see no option to do so. Other motherboard BIOS' I've used have had a PnP Operating System option. This one does not. On some of the hardware RAIDs I've seen, there's a way to access the

Re: [SLL] How can I specify IRQ allocation? i915 video and 3ware RAID sharing IRQ

2010-07-28 Thread Bryan McLellan
On Wed, Jul 28, 2010 at 11:29 PM, Phil Mocek pmocek-...@mocek.org wrote: On Wed, Jul 28, 2010 at 04:12:41PM -0700, Ralph Sims wrote: Did you try to disable plug-and-play? I see no option to do so.  Other motherboard BIOS' I've used have had a PnP Operating System option.  This one does not.

Re: [SLL] How can I specify IRQ allocation? i915 video and 3ware RAID sharing IRQ

2010-07-28 Thread Phil Mocek
On Wed, Jul 28, 2010 at 11:37:30PM +, Bryan McLellan wrote: PnP was an ISA technology as ISA didn't originally have a way for the system to configure resources. You likely don't have an ISA bus in this system. Correct. PCI only. PCI IRQs are usually assigned by slot. Trying moving a

Re: [SLL] How can I specify IRQ allocation? i915 video and 3ware RAID sharing IRQ

2010-07-28 Thread Bryan McLellan
On Wed, Jul 28, 2010 at 11:53 PM, Phil Mocek pmocek-...@mocek.org wrote: PCI IRQs are usually assigned by slot. Trying moving a card. I did.  It didn't help: On Wed, Jul 28, 2010 at 03:45:30PM -0700, Phil Mocek wrote: I've moved the RAID card from one PCI Express slot to the other PCI

Re: [SLL] How can I specify IRQ allocation? i915 video and 3ware RAID sharing IRQ

2010-07-28 Thread Chuck Wolber
On Wed, 28 Jul 2010, Phil Mocek wrote: Until today, I haven't found the need to concern myself with IRQ settings in almost a decade, but I have a 3ware 9650SE RAID controller and Intel 915 video sharing the same IRQ, and I'm experiencing both very slow disk access and Xorg freezing. This is