Re: Minecraft on ubuntu 12.04
I have never had luck running minecraft in a browser in Linux. But the minecraft.jar should run fine if you have openjdk-6-jre or openjdk-7-jre installed and proper video drivers. If you have old Intel integrated video it may be a bit sluggish.
It is best to download the minecraft.jar launcher in Linux, or at least with Firefox or something if you download it from Windows, because Internet Explorer would likely misname the file minecraft.zip. The minecraft.jar is downloaded from http://minecraft.net/download
In a terminal in X, cd to the directory containing the downloaded file and launch it with:
You can give it more RAM if you want to, it will start out with the amount specified by -Xms and use more if it needs it up to -Xmx. The first time you run it, it will download and create other files in ~/.minecraft/
java -Xmx1024M -Xms512M -cp minecraft.jar net.minecraft.LauncherFrame
But you always launch it from the minecraft.jar you downloaded, NOT the one that ends up as ~/.minecraft/bin/minecraft.jar (which does not contain the launcher). You can make a shell script to launch it. And if you occasionally get stuck movement keys, just hit the same key again in direction you are moving (lwjgl files can be updated from what is in minecraft to resolve that). But you can look into that once it is working.
i5 650 3.2 GHz, 8 GB, nvidia GTX 550 Ti 32" 1080p | i7-4700, 8 GB, Intel HD 4600/nvidia GTX 765M 15.6" 1080p | etc.