ubuntu Add a new resolution option (dry)

ubuntu default selectable resolutions can not meet my needs, here recorded an increase of 1440 * 900 resolution process

1. Input terminal:

CVT 1440 900

2. modify the configuration file:

vim /etc/profile

xrandr --newmode "1440x900_60.00" 106.50 1440 1528 1672 1904 900 903 909 934 -hsync +vsync
xrandr --addmode DVI-0 "1440x900_60.00"
xrandr --output DVI-0 --mode "1440x900_60.00"

　DVI-0 is a display name, can be found xrandr,

3. Force write file system command :( command mode) and then saved successfully Force Quit (:! Q)

: w ! sudo tee %

4. Enable the edited input terminal arranged :()

source /etc/profile　　

We're done! ! !