After installing Ubuntu on my IBM desktop, I found that the operating system would freeze after being idle for a random period of time (2 hours – 2 days).
Here are some possible fixes that I found.
Fix 1:
Set the noapic nolapic pci=noacpi parameters in the Grub kernel. In the /boot/grub/menu.lst look for the following:
title Ubuntu, kernel 2.6.20-15-generic root (hd0,0) kernel /boot/vmlinuz-2.6.20-15-generic root=UUID=XXX-XXX-XXX ro quiet splash initrd /boot/initrd.img-2.6.20-15-generic quiet savedefault
Add the noapic nolapic pci=noacpi parameters in the kernel line after the splash word.
Note:
ACPI == Advanced Config and Power Interface
APIC == Advanced Programmable Interrupt Controller
acpi=off (disables whole ACPI system)
noapic (tells kernel not to use the APIC)
nolapic (disables “local” APIC even if it is on in BIOS)
Fix 2:
Uninstall the acpid - Utilities for using ACPI power management package.
From the command line:
$ sudo apt-get remove acpid
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