[vox-tech] Skipping sound
Peter Jay Salzman
vox-tech@lists.lugod.org
Wed, 26 Feb 2003 18:13:57 -0800
heh. wasn't quite a request, but thanks anyway. :) it was a "your
video card is using irq 15. make sure it's not conflicting with
anything". :)
this is the kind of thing i can't seem to remember. i google for it
whenever i need it. i should throw it up on my web page just so i
don't bother google with the same question over and over. :)
thanks,
pete
begin ME <dugan@passwall.com>
> Peter Jay Salzman said:
> > i don't know my irq numbers. is 15 usually assigned to something like
> > the timer or usb?
>
> On Systems with IDE based drives, 15 is often secondary IDE.
>
> 0=cpu/timer *
> 1=keyboard *
> 2=Cascade to upper 8 irq *
> 3=/dev/ttyS1
> 4=/dev/ttyS0
> 5=often free or sound card or extra par port or serial port
> 6=Floppy Drive Controller #
> 7=parallel port #1 #
> 8=clock/real time clock *
> 9=cascade from 2, effectively "same as "2" but not quite the same *
> 10= often free or sound or usb or firewire or...
> 11= often free or sound or usb or firewire or...
> 12=ps2 mouse if you have one #
> 13=Math Co *
> 14=Primary IDE or SCSI on some systems #
> 15=Secondary IDE #
>
> Of course with the newer IRQ stuff much is not "set" and unchangeable.
> The ones I listed above ith a trailing "*" are pretty much set without you
> given choice.
> The ones with trailing "#" often use that IRQ resource when present and
> these are often unchangable, but not always.
> The serial ports are usually set as above, butcan often be altered.
>
> The above describes older x86 based PC IRQ.
>
> With newer systems and PCI with resource sharing and the virtual mapping
> of "extra IRQ" you can find caes where your x86 based linux system will
> report IRQ higher than 15 when you cat /proc/interrupts
>
> Enjoy,
> -ME