Can't run Minecraft... a GLX Problem?

Can't run Minecraft... a GLX Problem?

^ That.
Error Report:
Time: 5/26/13 8:06 PM
Description: Failed to start game


org.lwjgl.LWJGLException: Could not init GLX
    at org.lwjgl.opengl.LinuxDisplayPeerInfo.initDefaultPeerInfo(Native Method)
    at org.lwjgl.opengl.LinuxDisplayPeerInfo.<init>(LinuxDisplayPeerInfo.java:52)
    at org.lwjgl.opengl.LinuxDisplay.createPeerInfo(LinuxDisplay.java:684)
    at org.lwjgl.opengl.Display.create(Display.java:854)
    at org.lwjgl.opengl.Display.create(Display.java:784)
    at org.lwjgl.opengl.Display.create(Display.java:765)
    at net.minecraft.client.Minecraft.a(SourceFile:235)
    at avv.a(SourceFile:56)
    at net.minecraft.client.Minecraft.run(SourceFile:507)
    at java.lang.Thread.run(Thread.java:722)
A detailed walkthrough of the error, its code path and all known details is as follows:



-- System Details --
Details:
    Minecraft Version: 1.5.2
    Operating System: Linux (amd64) version 3.5.0-31-generic
    Java Version: 1.7.0_21, Oracle Corporation
    Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 23182920 bytes (22 MB) / 58785792 bytes (56 MB) up to 872415232 bytes (832 MB)
    JVM Flags: 0 total;
    AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
    Suspicious classes: No suspicious classes found.
    IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
    LWJGL: 2.4.2
    OpenGL: ~~ERROR~~ NullPointerException: null
    Is Modded: Probably not. Jar signature remains and client brand is untouched.
    Type: Client (map_client.txt)
    Texture Pack: Default
    Profiler Position: N/A (disabled)
    Vec3 Pool Size: ~~ERROR~~ NullPointerException: null
Please help?