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Dell Notebook computers sharing IRQ 11



 
 
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  #21  
Old January 12th 04, 01:01 AM
Laurence Payne
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On 8 Jan 2004 07:52:21 -0800,
(sheets) wrote:

I have a dell notebook and it's firewire port shares IRQ 11 with:

IRQ 11 Dell C840 OK
IRQ 11 Intel(R) 82801CA/CAM USB Universal Host Controller - 2482 OK
IRQ 11 Intel(R) 82801CA/CAM USB Universal Host Controller - 2487 OK
IRQ 11 3Com 3C920 Integrated Fast Ethernet Controller (3C905C-TX Compatible) OK
IRQ 11 Texas Instruments PCI-4451 CardBus Controller OK
IRQ 11 Texas Instruments PCI-4451 CardBus Controller OK
IRQ 11 Texas Instruments OHCI Compliant IEEE 1394 Host Controller OK

I'd like to move it over to:

IRQ 4 - Com Port
IRQ 5 - Modem
IRQ 6 - Floppy Controller

(Since I don't use either of these devices.)

Any idea how I can accomplish this?


This is a machine running Windows XP (or Windows 2K)?

This is how Windows XP and its ACPI feature does it. On a desktop
machine you can install Windows without ACPI and move cards into
different pci slots. On a laptop, ACPI is best left alone, if you
want any battery life at all. And, obviously, cards can't be used.
So, basically, bummer ;-(

If you are able to disable un-used devices in BIOS, do so. Then
uninstall the Firewire device from Device Manager and re-boot. If
you're lucky, it might move to a better IRQ. But, if not, bummer
again.

I'm afraid this is one of the several reasons why no-one who doesn't
HAVE to should choose a laptop for serious audio or video work.

The ACPI thing is discussed on my CubaseFAQ page. The problem isn't
confined to Cubase users.

www.laurencepayne.co.uk.\CubaseFAQ.htm

CubaseFAQ page www.laurencepayne.co.uk/CubaseFAQ.htm
  #22  
Old January 12th 04, 01:09 AM
Laurence Payne
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On Fri, 09 Jan 2004 19:52:55 GMT, "Marc Reinig"
wrote:

Unless your device that is performing poorly needs a truely huge amount of
processor power (Gigabit ethernet or equivalent is about the only thing that
comes to mind, and what would that be doing on a laptop ;=) ), there is
little reason to try and change IRQ. If a device really requires that,
either it is so poorly deisgned as to be considered broken or the driver is
likewise poorly designed.

Modern laptops should be able to cope with almost any combination of devices
with no problems.


They can. But when you're trying to stream audio or video through
Firewire, which is sharing an IRQ with the video system, problems
occur.

Nothing's going to fail or crash, no conflict or error message will
occur. But you'll often get glitches in the audio.

CubaseFAQ page www.laurencepayne.co.uk/CubaseFAQ.htm
  #23  
Old January 12th 04, 02:43 AM
Sheets
external usenet poster
 
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"Laurence Payne" wrote in message
This is a machine running Windows XP (or Windows 2K)?

XP Pro SP1A

This is how Windows XP and its ACPI feature does it. On a desktop
machine you can install Windows without ACPI and move cards into
different pci slots. On a laptop, ACPI is best left alone, if you
want any battery life at all. And, obviously, cards can't be used.
So, basically, bummer ;-(


I don't care about battery life.

If you are able to disable un-used devices in BIOS, do so. Then
uninstall the Firewire device from Device Manager and re-boot. If
you're lucky, it might move to a better IRQ. But, if not, bummer
again.

I'm afraid this is one of the several reasons why no-one who doesn't
HAVE to should choose a laptop for serious audio or video work.

The ACPI thing is discussed on my CubaseFAQ page. The problem isn't
confined to Cubase users.

www.laurencepayne.co.uk.\CubaseFAQ.htm


Thanks for the link.



  #24  
Old January 12th 04, 02:46 AM
Sheets
external usenet poster
 
Posts: n/a
Default


"Laurence Payne" wrote in message
...
On Fri, 09 Jan 2004 19:52:55 GMT, "Marc Reinig"
wrote:

Unless your device that is performing poorly needs a truely huge amount

of
processor power (Gigabit ethernet or equivalent is about the only thing

that
comes to mind, and what would that be doing on a laptop ;=) ), there is
little reason to try and change IRQ. If a device really requires that,
either it is so poorly deisgned as to be considered broken or the driver

is
likewise poorly designed.

Modern laptops should be able to cope with almost any combination of

devices
with no problems.


They can. But when you're trying to stream audio or video through
Firewire, which is sharing an IRQ with the video system, problems
occur.

Nothing's going to fail or crash, no conflict or error message will
occur. But you'll often get glitches in the audio.


But glitching is not what's going on. Maybe folks aren't bothering to read
the entire thread but my problem is the firewire device going offline and
only rebooting fixes it. (Hot-plugging does nothing)


 




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