Comment 134 for bug 640100

Hi

Step by step editing:

1.) Edit the grub config file
#sudo nano /etc/default/grub

2.) Append intel_idle.max_cstate=0 to the line:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
-> GRUB_CMDLINE_LINUX_DEFAULT="quiet splash intel_idle.max_cstate=0"

3.) Save grub config file
Press Ctrl + X

4.) run update-grub
#sudo update-grub

5.) Reboot
#sudo reboot