LWJGL 在启动时崩溃

Question

我开始学习如何使用LWJGL 库并编写了一个简单的显示程序，但它立即崩溃了。我正在使用 Linux Mint

Exception in thread "main" java.lang.ExceptionInInitializerError
    at DisplayExample.start(DisplayExample.java:10)
    at DisplayExample.main(DisplayExample.java:29)
Caused by: java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0
    at org.lwjgl.opengl.LinuxDisplay.getAvailableDisplayModes(LinuxDisplay.java:951)
    at org.lwjgl.opengl.LinuxDisplay.init(LinuxDisplay.java:738)
    at org.lwjgl.opengl.Display.<clinit>(Display.java:138)
    ... 2 more

Process finished with exit code 1

这是我写的代码：

import org.lwjgl.LWJGLException;
import org.lwjgl.opengl.Display;
import org.lwjgl.opengl.DisplayMode;

import java.io.File;

public class DisplayExample {
    public void start(){
        try{
            Display.setDisplayMode(new DisplayMode(800,600));
            Display.create();
        }
        catch(LWJGLException e){
            e.printStackTrace();
            System.exit(0);
        }

        while(!Display.isCloseRequested()){
            Display.update();
        }
        Display.destroy();
    }

    public static void main(String[] args){
        System.setProperty("org.lwjgl.librarypath", System.getProperty("user.dir") + File.separator + "linux");
        DisplayExample d = new DisplayExample();
        d.start();
    }
}

提前感谢您的回复！

这是xrandr -q

的输出

Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
eDP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 345mm x 194mm
   1920x1080     60.02*+  60.01    59.97    59.96    59.93  
   1680x1050     59.95    59.88  
   1600x1024     60.17  
   1400x1050     59.98  
   1600x900      59.99    59.94    59.95    59.82  
   1280x1024     60.02  
   1440x900      59.89  
   1400x900      59.96    59.88  
   1280x960      60.00  
   1440x810      60.00    59.97  
   1368x768      59.88    59.85  
   1360x768      59.80    59.96  
   1280x800      59.99    59.97    59.81    59.91  
   1152x864      60.00  
   1280x720      60.00    59.99    59.86    59.74  
   1024x768      60.04    60.00  
   960x720       60.00  
   928x696       60.05  
   896x672       60.01  
   1024x576      59.95    59.96    59.90    59.82  
   960x600       59.93    60.00  
   960x540       59.96    59.99    59.63    59.82  
   800x600       60.00    60.32    56.25  
   840x525       60.01    59.88  
   864x486       59.92    59.57  
   800x512       60.17  
   700x525       59.98  
   800x450       59.95    59.82  
   640x512       60.02  
   720x450       59.89  
   700x450       59.96    59.88  
   640x480       60.00    59.94  
   720x405       59.51    58.99  
   684x384       59.88    59.85  
   680x384       59.80    59.96  
   640x400       59.88    59.98  
   576x432       60.06  
   640x360       59.86    59.83    59.84    59.32  
   512x384       60.00  
   512x288       60.00    59.92  
   480x270       59.63    59.82  
   400x300       60.32    56.34  
   432x243       59.92    59.57  
   320x240       60.05  
   360x202       59.51    59.13  
   320x180       59.84    59.32  
HDMI-1 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)

Answer 1

LWJGL 使用 xrandr under the hood to get the screen resolutions by parsing xrandr -q command output.

检查 xrandr 是否已安装并且 xrandr -q returns 运行您的 Java 代码的机器上的有效输出。然后检查您的日志 Exception in XRandR.populate() message，它会告诉您为什么 LWJGL 无法获得分辨率。

LWJGL 在启动时崩溃

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