Comment 11 for bug 211980

Following Evermann's guide the problem has now been fixed

1.Download the dsdt.aml file to my desktop
2.Using a terminal session copy and rename the file to /etc/initramfs-tools/DSDT.aml

cd Desktop
sudo cp dsdt.aml /etc/initramfs-tools/DSDT.aml

3.Navigate to the folder to check the new file

cd /etc/initramfs-tools/
ls -l

drwxr-xr-x 2 root root 4096 2008-04-16 16:23 conf.d
-rw-r--r-- 1 root root 17552 2008-04-28 20:29 DSDT.aml
drwxr-xr-x 2 root root 4096 2008-03-18 17:22 hooks
-rw-r--r-- 1 root root 801 2006-12-21 23:32 initramfs.conf
-rw-r--r-- 1 root root 191 2008-03-19 21:16 modules
drwxr-xr-x 11 root root 4096 2008-03-19 21:15 scripts
-rw-r--r-- 1 root root 316 2006-12-21 23:32 update-initramfs.conf

4.Update existing initramfs

sudo update-initramfs-tools -u

5.Add the acpi_no_auto_ssdt option to the kernal load in /boot/grub/menu.lst