The Intel doc on the AL440LX board says that the interrupt line will
vary with the slot, from INTA - INTD. It says the p2x4 PCI/ISA chip
will map INTA-INTD to various interrupts. I have NO interrupts
reserved for ISA. I have NO other PCI cards. I have one AGP video
card, which also reports it's on INT9 (which is the reason I have a
problem).
What sets up the mapping of PCI interrupts to INT1-15? I understand
it's handled by the P2X4 chip. Is this strictly a bios function, or
does the linux P2X4 driver set this up?
Stranger still, if I stop the boot process when prompted by the
AHA2940 bios and view the config, it claims it's using INT11. Did
linux change it when it booted? Is /proc/pci lying?
This is 2.1.96 BTW.
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