$ cvt 1024 768
# 1024×768 59.92 Hz (CVT 0.79M3) hsync: 47.82 kHz; pclk: 63.50 MHz
Modeline “1024x768_60.00″ 63.50 1024 1072 1176 1328 768 771 775 798 -hsync +vsync
运行下边的命令将改变您显示器的分辨率，但是效果是临时的
$ xrandr --newmode “1024x768_60.00″ 63.50 1024 1072 1176 1328 768 771 775 798 -hsync +vsyn
$ xrandr --addmode VGA1 1024x768_60.00
$ xrandr --output VGA1 --mode 1024x768_60.00
![sudo apt-get update 出错 Updating from such a repository can‘t be done securely, and is therefore[图]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)