Minecraft goes black on 12.04 [duplicate]

In Minecraft 1.2.5,the LWJGL files were updated. Mojang forgot to update their database with the new LWJGL linux files. You need to update them yourself(this will be fixed in MInecraft 1.3). Here is the wiki link with instructions: http://www.minecraftwiki.net/wiki/Tutorials/Update_LWJGL

On the older versions of Ubuntu, you could fix that with

sudo apt-get install sun-java6-jre sun-java6-plugin

But those packages don't seem to be in the repositories for Precise.

When updating ubuntu my video-card driver always need to be updated or i will encounter a blackscreen folowed by an errormessage when starting minecraft.

my advice would be to search for a new driver to you card from your cards manufacturer as they probably make a supported linux version, (Ati for example)

This might solve your problem. If not you can always try updating your lwjgl package manualy with this guide: http://www.minecraftwiki.net/wiki/Tutorials/Update_LWJGL

Good luck!