[vox-tech] Skipping sound

Peter Jay Salzman vox-tech@lists.lugod.org
Wed, 26 Feb 2003 17:07:26 -0800


begin Samuel Merritt <spam@andcheese.org> 
> On Wed, Feb 26, 2003 at 01:55:06PM -0800, Peter Jay Salzman wrote:
> > begin Samuel Merritt <spam@andcheese.org> 
>  
> > 
> > i don't think every video card uses irq.   some video cards get polled
> > by the CPU and fetch data by explicit read accesses to I/O memory.
> > voodoo 4/5, 1/2 and mach cards are like this.  don't know about matrox.
> > but you should be able to tell using lspci -vb.
> 
> The relevant output is: 
> 
> 02:05.0 VGA compatible controller: Matrox Graphics, Inc. MGA 1064SG
> [Mystique] (
> rev 03) (prog-if 00 [VGA])
>         Subsystem: Matrox Graphics, Inc.: Unknown device 1000
>         Flags: bus master, stepping, medium devsel, latency 32, IRQ 15
>         Memory at fa800000 (32-bit, prefetchable)
>         Memory at f8000000 (32-bit, non-prefetchable)
>         Memory at f7800000 (32-bit, non-prefetchable)

is anything else currently taking irq 15?

i don't know my irq numbers.  is 15 usually assigned to something like
the timer or usb?

pete