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From: plenty900 on 14 Jan 2008 19:40
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.
From: Bill on 14 Jan 2008 22:39
Is it just a PCI card? Or fits in a video slot?
Card, try in a different slot.

<plenty900(a)yahoo.com> wrote in message
news:dcb3405f-251f-49da-95f2-1012c678bcbf(a)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.


From: plenty900 on 15 Jan 2008 11:53
On Jan 14, 10:39 pm, "Bill" <barg...(a)bellsouth.net> 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?

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