DebuggingIRQProblems

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= DebuggingIRQProblems =

The following are some symptoms which may indicate an IRQ-related problem:

 * Hardware devices being detected, but not functional (sound, network, etc.)
 * Problems using two hardware devices at the same time, or only when devices are connected at the same time
 * System hangs

If you think you may be experiencing such a problem, try these steps in order:

 * Boot the system with the `noapic` boot parameter
 * Boot the system with the `nolapic` boot parameter
 * Boot the system with the `pci=noacpi` boot parameter
 * Boot the system with the `acpi=off` boot parameter

If you are experiencing system panics or hangs, follow the instructions at DebuggingSystemCrash

From AnthonyBarker Tue Feb 22 04:37:37 +0000 2005
From: Anthony Barker
Date: Tue, 22 Feb 2005 04:37:37 +0000
Subject: Check the Bios or change items
Message-ID: <20050222043737+0000@https://www.ubuntulinux.org>

1) If you have a Bios conflict also ensure you check your bios to see if some of the items can be turned off temporarily (serial ports etc).
2) Try changing the order of the cards in your pc. I've seen it where due to bios issues cards work in certain slots and not in others.
#REFRESH 0 http://help.ubuntu.com/community/DebuggingIRQProblems
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CategoryKernel

DebuggingIRQProblems (last edited 2008-08-06 16:24:59 by localhost)