获取多个显示器的屏幕分辨率

Question

我正在尝试使用Java获取屏幕监视器分辨率。问题是我没有得到正确的输出。三个显示器中的第一个显示的像素宽度为5760而不是1920.它们都具有相同的尺寸1920x1080。

代码：

GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice[] gs = ge.getScreenDevices();
System.out.println("Number of devices: " + gs.length);
System.out.println("Default resolution: " + java.awt.Toolkit.getDefaultToolkit().getScreenSize());
for (int i = 0; i < gs.length; i++) {
    System.out.printf("id: %s, width: %d, height: %d\r\n", gs[i].getIDstring(), gs[i].getDisplayMode().getWidth(), gs[i].getDisplayMode().getHeight());
}

输出：

Number of devices: 3
Default resolution: java.awt.Dimension[width=5760,height=1080]
id: :0.0, width: 5760, height: 1080
id: :0.1, width: 1920, height: 1080
id: :0.2, width: 1920, height: 1080

有关如何获得所有三种正确的显示器像素大小的任何提示？

编辑1：

xrandr的输出是：

myuser@mysystem ~ $ xrandr 
Screen 0: minimum 8 x 8, current 5760 x 1080, maximum 32767 x 32767
DVI-D-0 disconnected (normal left inverted right x axis y axis)
HDMI-0 connected 1920x1080+3840+0 (normal left inverted right x axis y axis) 531mm x 299mm
   1920x1080     60.00*+  59.94    50.00    60.05    60.00    50.04  
   1680x1050     59.95  
   1440x900      59.89  
   1280x1024     75.02    60.02  
   1280x960      60.00  
   1280x800      59.81  
   1280x720      60.00    59.94    50.00  
   1152x864      75.00  
   1024x768      75.03    70.07    60.00  
   800x600       75.00    72.19    60.32    56.25  
   720x576       50.00  
   720x480       59.94  
   640x480       75.00    72.81    59.94    59.93  
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 531mm x 299mm
   1920x1080     60.00*+  59.94    50.00    60.05    60.00    50.04  
   1680x1050     59.95  
   1440x900      59.89  
   1280x1024     75.02    60.02  
   1280x960      60.00  
   1280x800      59.81  
   1280x720      60.00    59.94    50.00  
   1152x864      75.00  
   1024x768      75.03    70.07    60.00  
   800x600       75.00    72.19    60.32    56.25  
   720x576       50.00  
   720x480       59.94  
   640x480       75.00    72.81    59.94    59.93  
HDMI-2 connected primary 1920x1080+1920+0 (normal left inverted right x axis y axis) 531mm x 299mm
   1920x1080     60.00*+  59.94    50.00    60.05    60.00    50.04  
   1680x1050     59.95  
   1440x900      59.89  
   1280x1024     75.02    60.02  
   1280x960      60.00  
   1280x800      59.81  
   1280x720      60.00    59.94    50.00  
   1152x864      75.00  
   1024x768      75.03    70.07    60.00  
   800x600       75.00    72.19    60.32    56.25  
   720x576       50.00  
   720x480       59.94  
   640x480       75.00    72.81    59.94    59.93