LWJGL example doesn't work under Linux with ATI Radeon 9250 Pro

elias · February 2, 2009, 3:20pm

If you feel lucky, my best guess at the critical commit would be 2969, where Display.setParent is implemented for linux.

EDIT: And beware of commit 2965, which broke a few examples, but later (post alpha 3) fixed.

elias

gouessej · February 2, 2009, 9:51pm

Ok I will try to check if it comes from this at first; otherwise I will use the method based on dichotomy as you suggested (I had already planned to do this in the worst case).

N.B: It is not finished. In a near future, I may have some other bugs to fix under LWJGL but I don’t know if I will have enough to investigate.

gouessej · February 15, 2009, 1:16pm

Why does Space Invaders work now on my machine??? Has something changed in LWJGL recently???

Matzon · February 15, 2009, 1:40pm

hmm, think elias changed some stuff to make linux 64 bit run from the jnlp - basically removed arch=“i386” from

gouessej · February 15, 2009, 6:08pm

But then why does GL Gears not work on my machine whereas Space Invaders does?

Matzon · February 15, 2009, 6:43pm

Gears does:

Display.setLocation((Display.getDisplayMode().getWidth() - 300) / 2, (Display.getDisplayMode().getHeight() - 300) / 2);
Display.setDisplayMode(new DisplayMode(300, 300));
Display.setTitle("Gears");
Display.create();

whereas space invaders does:

DisplayMode[] dm = org.lwjgl.util.Display.getAvailableDisplayModes(width, height, -1, -1, -1, -1, 60, 60);

org.lwjgl.util.Display.setDisplayMode(dm, new String[] {
    "width=" + width,
    "height=" + height,
    "freq=" + 60,
    "bpp=" + org.lwjgl.opengl.Display.getDisplayMode().getBitsPerPixel()
});

The later actually checks the available modes…
perhaps the default mode in Gears - and indeed many games that rely on the basic displaymode may have issues on youor card. The question is - what does it not like?

elias · February 15, 2009, 8:17pm

It’s probably the “freq=60” part, if linux reports “-1” or “0” for all modes.

elias

Matzon · February 15, 2009, 8:27pm

except that invaders is the one that actually works!

gouessej · February 15, 2009, 11:18pm

My home computer supports -1, you already know that it matches with the AWT constant REFRESH_RATE_UNKNOWN.

new DisplayMode(300,300) creates a display mode with the frequency at 0, it is a bit strange, isn’t it?

princec · February 16, 2009, 10:11am

new DisplayMode(300,300) should be creating a very basic windowed display, which it should cope with perfectly adequately - that is, a GL display at the same bit depth as the desktop, with no specification for frequency. So it’s the windowed path that’s broken, somehow (which is odd because it’s usually the more reliable path)

Cas

gouessej · April 23, 2009, 11:29am

Maybe it is time to do what you suggested. I may do this Saturday.

gouessej · April 24, 2009, 6:40pm

I get this when I try to compile LWJGL revision 2961:

[quote]compile:
[apply] /usr/bin/ld: cannot find -lXxf86vm
[apply] collect2: ld returned 1 exit status

BUILD FAILED
/home/julien/Documents/programmation/java/java-game-lib/trunk/LWJGL/build.xml:598: The following error occurred while executing this line:
/home/julien/Documents/programmation/java/java-game-lib/trunk/LWJGL/build.xml:614: The following error occurred while executing this line:
/home/julien/Documents/programmation/java/java-game-lib/trunk/LWJGL/platform_build/linux_ant/build.xml:42: apply returned: 1
[/quote]
Please let me know what I have to do to work around this :’(

elias · April 24, 2009, 6:59pm

On ubuntu, you need the “libxxf86vm-dev” package

elias

gouessej · April 24, 2009, 9:22pm

libxxf86vm1-devel.rpm is already installed on my Mandriva Linux 2007

elias · April 25, 2009, 3:55am

What about the basic libxxf86vm package? (without the -devel)

elias

gouessej · April 25, 2009, 10:12am

libxxf86vm1.rpm is installed too:
libxxf86vm1 - Development files for libxxf86vm
XFree86 Video Mode Extension Library
/usr/lib/libXxf86vm.so.1
‎/usr/lib/libXxf86vm.so.1.0.0

gouessej · April 25, 2009, 10:15am

I installed the static development library and it worked ;D I have to go to the restaurant. I will perform the test tonight.

gouessej · April 25, 2009, 6:10pm

I enter this:

[quote]java -cp bin/:libs/ -Djava.library.path=libs/linux/ -Dorg.lwjgl.util.Debug=true -Dorg.lwjgl.opengl.Display.allowSoftwareOpenGL=true org.lwjgl.examples.spaceinvaders.Game
[/quote]
and I get this:

[quote]Use -fullscreen for fullscreen mode
Xrandr extension version 1.1
Using Xrandr for display mode switching
XF86VidMode extension version 2.2
Initial mode: 1024 x 768 x 24 @60Hz
Removed 0 duplicate displaymodes
Available screen modes:
400 x 300 x 24 @60Hz
1024 x 768 x 24 @50Hz
640 x 480 x 24 @60Hz
832 x 624 x 24 @60Hz
1024 x 768 x 24 @60Hz
832 x 624 x 24 @50Hz
800 x 600 x 24 @60Hz
800 x 600 x 24 @56Hz
Sorted display modes:
800 x 600 x 24 @60Hz
832 x 624 x 24 @60Hz
1024 x 768 x 24 @60Hz
Attempting to set displaymode: 800 x 600 x 24 @60Hz
libGL warning: 3D driver claims to not support visual 0x4b
Pixel format info: r = 8, g = 8, b = 8, a = 8, depth = 24, stencil = 0, sample buffers = 0, samples = 0
getPathFromClassLoader: searching for: openal
Failed to locate findLibrary method: java.lang.NoSuchMethodException: sun.misc.Launcher$AppClassLoader.findLibrary(java.lang.String)
Failed to locate findLibrary method: java.lang.NoSuchMethodException: java.net.URLClassLoader.findLibrary(java.lang.String)
Failed to locate findLibrary method: java.lang.NoSuchMethodException: java.security.SecureClassLoader.findLibrary(java.lang.String)
getPathFromClassLoader: searching for: lwjgl
Failed to locate findLibrary method: java.lang.NoSuchMethodException: sun.misc.Launcher$AppClassLoader.findLibrary(java.lang.String)
Failed to locate findLibrary method: java.lang.NoSuchMethodException: java.net.URLClassLoader.findLibrary(java.lang.String)
Failed to locate findLibrary method: java.lang.NoSuchMethodException: java.security.SecureClassLoader.findLibrary(java.lang.String)
getPathFromClassLoader: searching for: lwjgl
Failed to locate findLibrary method: java.lang.NoSuchMethodException: sun.misc.Launcher$AppClassLoader.findLibrary(java.lang.String)
Failed to locate findLibrary method: java.lang.NoSuchMethodException: java.net.URLClassLoader.findLibrary(java.lang.String)
Failed to locate findLibrary method: java.lang.NoSuchMethodException: java.security.SecureClassLoader.findLibrary(java.lang.String)
Found 6 OpenAL paths
Testing ‘libs/linux//libopenal.so’
Found OpenAL at ‘libs/linux//libopenal.so’
Unable to create from: null
java.lang.NullPointerException
at org.lwjgl.util.WaveData.create(WaveData.java:95)
at org.lwjgl.util.WaveData.create(WaveData.java:112)
at org.lwjgl.examples.spaceinvaders.SoundManager.addSound(SoundManager.java:154)
at org.lwjgl.examples.spaceinvaders.Game.initialize(Game.java:242)
at org.lwjgl.examples.spaceinvaders.Game.(Game.java:179)
at org.lwjgl.examples.spaceinvaders.Game.main(Game.java:580)
Exception in thread “main” java.lang.NullPointerException
at org.lwjgl.examples.spaceinvaders.SoundManager.addSound(SoundManager.java:157)
at org.lwjgl.examples.spaceinvaders.Game.initialize(Game.java:242)
at org.lwjgl.examples.spaceinvaders.Game.(Game.java:179)
at org.lwjgl.examples.spaceinvaders.Game.main(Game.java:580)
Mode 0: 1024x768 @60
XF86VidMode extension version 2.2
[/quote]
It happens in the revisions 2969 and 2990 too

Matzon · April 25, 2009, 6:40pm

you need to add ‘res’ to the classpath for sound to be locatable

gouessej · April 26, 2009, 8:04am

Ok but now I get a black screen whatever the version. I enter “ant clean” before compiling

Edit.: even with the revision 3203, it does not work, I get only a black screen.