To fix high CPU usage caused by graphic driver

« Ohjeita

Hardware acceleration can cause high CPU usage with some graphic drivers. Usually this can happen on an old computer and driver like savage.

1. Make a /etc/X11/xorg.conf file

sudo Xorg :1 -configure

PS. Ignore the error messages

sudo cp /root/xorg.conf.new /etc/X11/xorg.conf

2. Edit the /etc/X11/xorg.conf file

sudo nano /etc/X11/xorg.conf

… add the next line to the device section

Option "NoAccel" "True"

… save, quit and reboot

Ctrl o
Ctrl x

An example about whole section:

Section "Device"
Option "NoAccel" "True"
Identifier "Card0"
Driver "intel"
BusID "PCI:0:2:0"
EndSection