答复: No IRQ Known for interrupt pin A of device 02:04.0. Please tryusing pci=biosirq
xw at chinahost.com
Tue Oct 1 01:13:00 CEST 2002
The card has problem is not a VGA card. It's a 2-channle-video-capture-card. There is no problem with
发件人: ollie lho [mailto:ollie at sis.com.tw]
发送时间: 2002年10月1日 11:59
收件人: David Xiong
抄送: Ronald G Minnich; steve at nexpath.com; linuxbios at clustermatic.org
主题: RE: No IRQ Known for interrupt pin A of device 02:04.0. Please
On Tue, 2002-10-01 at 11:35, David Xiong wrote:
> The mainboard is K7SEM and irq_tables.c is already in the source tree.
> I run the program getpir and get an irq_tables.c file which is the same
> as the one in the source tree. The program util/getpir reports 6 slot found,
> whether I plug in the multimedia card or not, and produce exact the same irq_tables.c.
> And the option HAVE_PIRQ_TABLE=1 is set in the config file of the source tree.
> I traced into the kernel source and found that the original BIOS set IRQ when POST,
> but linuxbios does not do so. The IRQ is 0 when start up with linuxbios.
> When the driver of the multimedia card comes up, it find the card has not an IRQ.
> Then the driver try to get one from the irq_table, but the PCI device is not in
> the irq_table, so it can not find one or assign one to the device.
> What else can I do? Can I hard code one irq to the card?
The kernel pci-irq code refuse to setup IRQ for VGA devices. You have to
set it up yourself. BTW, your card still need some init code in your VGA
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