On Mon, 28 Oct 2002, Florin Iucha wrote:

> > > How are your keyboard/mouse hooked up? through USB? If they are,
> > > there's a chance that the IRQ is conflicting between the three things
> > > that are using IRQ16. If your mouse is on USB, try changing the USB
> > > IRQ to something other than 16 in the BIOS.
> > 
> > unless this is an old Pentootium or 486 and/or using ISA it is not an IRQ 
> > conflict
> > 
> > with PCI/USB there is no such thing as IRQ conflicts anymore.
> 
> You are reading too many brochures.

i just read too much.

> The ohci-hcd thingie on IRQ5 is my USB mouse! It is (after the timer of
> course) the biggest source of interrupts in my system.
> 
> If the system is loaded: playing music you get over nfs from a server
> and burning a cd and browsing (moving the mouse a lot), you might get
> lost interrupts.
> 
> It just depends on how well the drivers share the irq line.

exactly. drivers. it is not a hardware problem anymore, but a software 
issue.

> A couple of years ago I was getting noise from the sound card every time
> a packet went through my ethernet card. And I couldn't do anything about
> it since it was a laptop, with all the interrupts wired to 11. The 
> kernel and drivers imporoved a lot since then.

my point exactly.

> There were also some problems back when X would grab the PCI bus and
> hold it too long, causing the dropped ethernet packets and noise over
> the music.

again, software, not hardware.

> Cheers,
> florin

Munir Nassar
RedConcepts.NET