Remove Guest Session at login in Ubuntu 14.04

Open Terminal using the short key, Ctrl + Alt + T
Apply following command to open the configuration file.

sudo gedit /usr/share/lightdm/lightdm.conf.d/50-ubuntu.conf

Add following line below the last line,


Turn off animations (ripple effects) on Android Lollipop

You can adjust or turnoff animations and ripple effects on Android Lollipop and custom ROMs including CyanogenMod 12.

Go to Settings > Developer options

Find Animator  duration scale. Decrease its number.