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! ! !