CPUScalingFix

CPU Scaling Fix

Please be careful when editing these files. You can break the boot load process if you make a mistake.

1. Open a Command Line Terminal, type the following:

sudo gedit /boot/grub/menu.lst

This will bring up the grub boot menu configuration file.

2. Scroll to the bottom of the file and you'll find several boot options.
Go to the first.
This is a sample of what to look for:

title           Ubuntu 9.04, kernel 2.6.28-16-generic
root            (hd0,0)
kernel          /boot/vmlinuz-2.6.28-16-generic root=UUID=1dd1d295-9c26-4b2b-a242-6f9cafad3157 ro quiet splash
initrd          /boot/initrd.img-2.6.28-16-generic

3. "Insert" our acpi_osi="!Windows 2006" option.
The end result should look something like this:

title           Ubuntu 9.04, kernel 2.6.28-16-generic
root            (hd0,0)
kernel          /boot/vmlinuz-2.6.28-16-generic root=UUID=1dd1d295-9c26-4b2b-a242-6f9cafad3157 ro acpi_osi="!Windows 2006" quiet splash
initrd          /boot/initrd.img-2.6.28-16-generic

4. Save your file and exit the editor. You will need to reboot for the changes to take effect.

REMEMBER - These are just examples. You need to modify whats on your OWN system.
Do NOT just cut and paste what you see here into your own /boot/grub/menu.1st file.

This will enable CPU speed scaling, helping preserve the Mini-Note's battery life.
For more information about this bug (which is in the kernel, and not specific to the Mini-Note) see this link.

LaptopTestingTeam/Old/HP2133/CPUScalingFix (last edited 2010-02-26 21:03:50 by primes2h)