1.查看现有设备 xrandr -q 输出如下: Screen 0: minimum 1 x 1, current 800 x 600, maximum 8192 x 8192 Virtual1 connected primary 800x600+0+0 (normal left inverted right x axis y axis) 0mm x 0mm 800x600 60.00*+ 60.32 2560x1600 59.99 1920x1440 60.00 1856x1392 60.00…