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JorgeO
Asked: 2009-10-02 14:57:05 +0800 CST

Handle IRQ in Debian

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I'm running Debian and I'm running into an IRQ problem, two cards that generate a lot of IRQ interrupts are sharing the same IRQ (16). I found on the HP Bios an option that states "allow OS to trip IRQ", I enable it, but how do I actually change the IRQ from the OS?

debian

2 Answers

  1. Best Answer

    I agree with Farseeker, it has been many eons since I had to play with IRQ conflicts, and I always tried to find a way to make sure no two devices shared an IRQ if I could help it as nothing good ever comes from it.

    I would read the docs for both cards and figure out how to move one of them to another IRQ. This used to be done with jumpers on the physical hardware, those days are pretty much gone and these days you use the manufacturer's setup / diagnostic programs to change the firmware to change the IRQ's.

    There might not be a utility for Debian for this, you might need to pop it into a PC running Windoze to change it, and then move it back to your Debian box.

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  2. My Ubuntu system (and probably your Debian system) have (or you can apt-get them) lspci and setpci. I would start by reading their man pages.

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