Setup LG-24MP55 Monitor on Ubuntu 14.10

This is my brandnew monitor :-)

It works fine on Thinkpad X200, Windows 8.1 under 1920x1080 60Hz. But in Ubuntu 14.10, it will work in 1024x768, 60MHz only.

By searching on Google, I finally find the way to adjust it to works with Ubuntu by the following steps.

$ cvt 1920 1080 60
# 1920x1080 59.96 Hz (CVT 2.07M9) hsync: 67.16 kHz; pclk: 173.00 MHz
Modeline "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync

$ xrandr --newmode "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync
$ xrandr --addmode VGA1 "1920x1080_60.00"
$ xrandr --output VGA1 --mode 1920x1080_60.00 --left-of LVDS1

Now, there comes out “1920 x 1080 (16:9)” option at the “System Settings -> Displays -> Resolution”. Just pick it, and go :-)