I get the following output when running my game on Ubuntu. It runs perfecly fine in Windows XP.
run:
Xrandr extension version 1.3
Using Xrandr for display mode switching
XF86VidMode extension version 2.2
Initial mode: 1280 x 1024 x 24 @50Hz
Pixel format info: r = 8, g = 8, b = 8, a = 0, depth = 24, stencil = 0, sample buffers = 0, samples = 0
java.lang.IllegalStateException: Function is not supported
at org.lwjgl.BufferChecks.checkFunctionAddress(BufferChecks.java:64)
at org.lwjgl.opengl.GL11.glGetError(GL11.java:1360)
at org.lwjgl.opengl.Util.checkGLError(Util.java:52)
at org.lwjgl.opengl.GL11.glGetString(GL11.java:1795)
at org.lwjgl.opengl.GLContext.getSupportedExtensions(GLContext.java:185)
at org.lwjgl.opengl.ContextCapabilities.initAllStubs(ContextCapabilities.java:3438)
at org.lwjgl.opengl.ContextCapabilities.<init>(ContextCapabilities.java:3684)
at org.lwjgl.opengl.GLContext.useContext(GLContext.java:328)
at org.lwjgl.opengl.Context.makeCurrent(Context.java:183)
at org.lwjgl.opengl.Display.makeCurrent(Display.java:713)
at org.lwjgl.opengl.Display.makeCurrentAndSetSwapInterval(Display.java:865)
at org.lwjgl.opengl.Display.create(Display.java:843)
at org.lwjgl.opengl.Display.create(Display.java:767)
at org.lwjgl.opengl.Display.create(Display.java:748)
at ecl.client.Main.initializeGears(Main.java:270)
at ecl.client.Main.run(Main.java:138)
at java.lang.Thread.run(Thread.java:636)
Exception in thread "Thread-0" java.lang.IllegalStateException: Function is not supported
at org.lwjgl.BufferChecks.checkFunctionAddress(BufferChecks.java:64)
at org.lwjgl.opengl.GL11.glEnable(GL11.java:1031)
at ecl.client.Main.initializeGears(Main.java:276)
at ecl.client.Main.run(Main.java:138)
at java.lang.Thread.run(Thread.java:636)
Mode 0: 1280x1024 @50
java: ../../src/xcb_io.c:445: _XReply: Assertion `!dpy->xcb->reply_data' failed.
Java Result: 134
BUILD SUCCESSFUL (total time: 1 second)
I just noticed Ubuntu is set to use 24bpp for the screen, and won't allow me to chose 32. In XP, I had 32. Might that be the reason? I just read that Ubuntu's 24 bit depth is equal to Window's 32...
By the way, the line that actually generates the error is:
Display.create();
No GL methods are called before that line, actually, no lwjgl methods at all, except for the Display ones.
static public final String WINDOW_TITLE = "Ex Calce Liberatus Online";
static public final int SCREEN_WIDTH = 640;
static public final int SCREEN_HEIGHT = 480;
private boolean _bFullscreen = false;
...
public void initializeGears(){
try {
Display.setTitle(WINDOW_TITLE);
setDisplayMode(SCREEN_WIDTH, SCREEN_HEIGHT, _bFullscreen);
Display.create();
} catch (Exception ex) {
ex.printStackTrace();
}
...
}
private void setDisplayMode(int iWidth, int iHeight, boolean bFullscreen) throws Exception{
if(!bFullscreen){
Display.setDisplayMode(new DisplayMode(iWidth, iHeight));
}else{
Display.setFullscreen(true);
try{
DisplayMode dm[] = org.lwjgl.util.Display.getAvailableDisplayModes(320, 240, -1, -1, -1, -1, 60, 85);
org.lwjgl.util.Display.setDisplayMode(dm, new String[]{
"width=" + iWidth, "height=" + iHeight, "freq=85",
"bpp=" + Display.getDisplayMode().getBitsPerPixel()
});
} catch(Exception e){
Sys.alert("Error", "Could not start full screen, switching to windowed mode");
Display.setDisplayMode(new DisplayMode(iWidth, iHeight));
}
}
}
Are you using an older nightly build of 2.2.0 on Linux? This looks like a bug that was fixed recently.
That's right, I'm using a one or two months 2.2 lwjgl nightly build. I'll try downloading again and see what happens.
EDIT
Where can I download nightly builds? I lost the link >_>
http://www.newdawnsoftware.com/hudson/view/LWJGL/