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High-pitch Noise on Laptop 2006-03-25 10:18

Some older latitude models have the noise
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Do you hear a high pitch noise when your laptop is Linux, but not when it’s in Windows? Fix is easy – you just need to add another kernel variable you pass to your kernel in your bootloader .conf file: idle=halt

So my grub.conf now looks something like this:
timeout 3
default 0
title Gentoo 2.6.13-r3
root(hd0,2)
kernel /boot/kernel-2.6.13-gentoo-r3 root=/dev/sda3 idle=halt
title Gentoo 2.6.14-r5
root (hd0,8)
kernel /boot/kernel-2.6.14-gentoo-r5 root=/dev/sda9 idle=halt

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