On Monday 06 June 2011 16:33:54 Brent Busby wrote: > On Mon, 6 Jun 2011, Ralf Mardorf wrote: > > USB very often is sharing IRQs. Hm? If USB won't cause IRQ issues I > > only need to find a flat, wired one. > > Yes, most motherboards almost always put the USB controller on the same > IRQ as something else. Then again, I've never seen one that actually > caused problems from that. PCI IRQ sharing can work, you just can't > necessarily trust that XYZ card will do it right. I've never had an IRQ > sharing problem from on-board USB before though. IRQ sharing between usb and closed-source-driver video cards (almost) always cause problems. Blogs, ticket systems and boards are full of proof for this. But then its not limited to usb+graphics, firewire+graphics sharing the interrupt is also a happy source of problems. Again the culprit is most likely the closed source driver... Have fun, Arnold
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