Fix slowing CPU sudo nano /etc/X11/xorg.conf.d/20-intel.conf Section "Device" Identifier "Intel Graphics" Driver "Intel" Option "AccelMethod" "sna" Option "TearFree" "true" Option "TripleBuffer" "true" Option "MigrationHeuristic" "greedy" Option "Tiling" "true" Option "Pageflip" "true" Option "ExaNoComposite" "false" Option "Tiling" "true" Option "Pageflip" "true" Option "VSync" "false" EndSection

1. Install drivers (http://support.displaylink.com/knowledgebase/articles/684649-how-to-install-displaylink-software-on-ubuntu) 2. Disable secure boot 3. Create file: $ vi /usr/share/X11/xorg.conf.d/10-intel.conf Paste This: Section "Device" Identifier "Intel" Driver "intel" Option "VSync" "false" EndSection Best Solution: $ cat /etc/X11/xorg.conf.d/20-intel.conf Section "Device" Identifier "Intel Graphics" Driver "Intel" Option "AccelMethod" "sna" Option "TearFree" "true" Option "TripleBuffer" "true" Option "MigrationHeuristic" "greedy" Option "Tiling" "true" Option "Pageflip" "true" Option "ExaNoComposite" "false" Option "Tiling" "true" Option "Pageflip" "true" Option "VSync" "false" EndSection 4. Reboot 5. CPU decreasing compiz https://askubuntu.com/questions/689602/disable-all-visual-effects-in-ubuntu-15-10