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Hi folks,

I get this error when booting up:

PCI: No IRQ known for interrupt pin A of device 0000:00:03:0. Please
try using pci=biosirq.

However when I use pci=biosirq, it doesn't help. The "Please try..."
just goes away.
Device 03 is the video card.

The PCI code finds the PCI BIOS however it complains of an error 81
when fetching the IRQ table.
I have removed everything PnP related from the kernel.

Anybody know what might be wrong?

Thanks for your help.

Is it just a PCI card? Or fits in a video slot?
Card, try in a different slot.

<[email protected]> wrote in message
news:dcb3405f-251f-49da-95f2-1012c678bcbf@m34g2000hsb.googlegroups.com...
> Hi folks,
>
> I get this error when booting up:
>
> PCI: No IRQ known for interrupt pin A of device 0000:00:03:0. Please
> try using pci=biosirq.
>
> However when I use pci=biosirq, it doesn't help. The "Please try..."
> just goes away.
> Device 03 is the video card.
>
> The PCI code finds the PCI BIOS however it complains of an error 81
> when fetching the IRQ table.
> I have removed everything PnP related from the kernel.
>
> Anybody know what might be wrong?
>
> Thanks for your help.

On Jan 14, 10:39 pm, "Bill" <[email protected]> wrote:
> Is it just a PCI card? Or fits in a video slot?
> Card, try in a different slot.

It's in a laptop.

I did find that using "irqpoll" helps, however there seem to be
strange things going on.
In particular, this is a video card, and it's apparent that many
writes to video memory
are not going to the right addresses. There's a lot of garbled junk on
the framebuffer
screen.

Could the IRQ be responsible for that?

On Tue, 15 Jan 2008 00:40:55 UTC in comp.os.linux.development.system,
[email protected] wrote:

> I get this error when booting up:
>
> PCI: No IRQ known for interrupt pin A of device 0000:00:03:0. Please
> try using pci=biosirq.
>
> However when I use pci=biosirq, it doesn't help. The "Please try..."
> just goes away.
> Device 03 is the video card.
>
> The PCI code finds the PCI BIOS however it complains of an error 81
> when fetching the IRQ table.
> I have removed everything PnP related from the kernel.
>
> Anybody know what might be wrong?

This is almost certainly the wrong newsgroup for this thread. This n.g is for
discussion of development of parts of the Linux system. You'd do better in,
f.e., c.o.l.hardware. You also don't give enough (any!) details about your
hardware, your linux distribution or any other kernel messages you might get.
The output from dmidecode might help too. The lspci utility will tell you what
device 0.0.3:0 is - that might be useful information. You also don't give any
details about what type of Linux you're running and whether it has an up to date
kernel or not.

I would try hunting to see if there is a BIOS update for your laptop first.

--
Trevor Hemsley, Brighton, UK
Trevor dot Hemsley at ntlworld dot com