Minecraft crash (Linux) :/

Bonjour, Bonsoir
J'ai obtenue récemment mon nouvelle ordinateur ACER sous Linux (ubuntu). Premièrement je suis un novice sur Linux, donc un peu perdu.
Mon problème est que je n'arrive pas a lancer Minecraft. Apres authentification le jeu me marque un message d'erreur!




Minecraft has crashed!
----------------------

Minecraft has stopped running because it encountered a problem; Failed to start game
This error has been saved to /home/pop2012/.minecraft/crash-reports/crash-2012-10-27_18.12.25-client.txt for your convenience. Please include a copy of this file if you report this crash to anyone.



--- BEGIN ERROR REPORT 7a254b64 --------
Generated 27/10/12 18:12

- Minecraft Version: 1.4.2
- Operating System: Linux (amd64) version 3.2.0-31-generic
- Java Version: 1.6.0_24, Sun Microsystems Inc.
- Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Sun Microsystems Inc.
- Memory: 24789952 bytes (23 MB) / 58916864 bytes (56 MB) up to 874315776 bytes (833 MB)
- JVM Flags: 0 total;
- AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
- LWJGL: 2.8.4
- OpenGL: ~ERROR~ NullPointerException: null
- Is Modded: Probably not
- Type: Client
- Texture Pack: ~ERROR~ NullPointerException: null
- Profiler Position: N/A (disabled)
- Vec3 Pool Size: ~ERROR~ NullPointerException: null[failed to get system properties (java.lang.NullPointerException)]


org.lwjgl.LWJGLException: X Error - disp: 0x7f2370002c60 serial: 31 error: BadRequest (invalid request code or no such operation) request_code: 154 minor_code: 14
at org.lwjgl.opengl.LinuxDisplay.globalErrorHandler(LinuxDisplay.java:318)
at org.lwjgl.opengl.LinuxDisplayPeerInfo.initDefaultPeerInfo(Native Method)
at org.lwjgl.opengl.LinuxDisplayPeerInfo.<init>(LinuxDisplayPeerInfo.java:61)
at org.lwjgl.opengl.LinuxDisplay.createPeerInfo(LinuxDisplay.java:788)
at org.lwjgl.opengl.DrawableGL.setPixelFormat(DrawableGL.java:61)
at org.lwjgl.opengl.Display.create(Display.java:843)
at org.lwjgl.opengl.Display.create(Display.java:754)
at org.lwjgl.opengl.Display.create(Display.java:736)
at net.minecraft.client.Minecraft.a(SourceFile:232)
at net.minecraft.client.Minecraft.run(SourceFile:515)
at java.lang.Thread.run(Thread.java:679)
--- END ERROR REPORT 3c8e8765 ----------


... Personnellement je n'y comprends rien à ce message, mais bon...
Si ce problème vous est déjà arriver ou si tout simplement vous connaissait une solution j'aimerais bien la connaitre.
Merci d'avance pour vos réponse :D!!!!!