Minecraft will not work on Ubuntu 12.04

**Rahbee Kannuhn** · July 16th, 2012

argh, so much for java "write once, run everywhere".
I keep a windows partition handy as a gaming platform anyway, will wait for a proper fix for the linux client, after an hour of toying with all the various fixes, still a black screen, ugh.

**efflandt** · July 19th, 2012

Sometimes people make things more complicated than they need to be. I have been running minecraft since v1.8 beta in 64-bit Ubuntu using openjdk-6-jre, and that works fine in in 12.04 (including snapshots of upcoming 1.3 version). I have been using lwjgl 2.6 only because movement keys would occasionally stick with lwjgl 2.4.2 that came with minecraft. Works great at 1080p on desktop in my sig.

However on laptop from 2006 with Intel 1.66x2 GHz 2.5 GB and integrated Intel video it runs noticeably slower than a 1x2 GHz tablet PC w/2 GB and ATI HD video ( both at same 1280x800 screen resolution). I don't have anything with Intel HD graphics to see if that has issues.

**cbennett926** · July 19th, 2012

FWIW

I can run perfectly fine, no lag, and with an HD texture pack

**dmaxel** · July 24th, 2012

Hey everyone,

Sorry to hijack this thread, but I also have an issue. Pretty much, I cannot chat. The chat prompt appears when I hit "T", but after I enter in my message, it does not get sent off when I hit "Enter".

I have no idea what else I could do to fix this. I've used the latest Minecraft as well as updated the lwjgl, but that didn't help. I even tried the latest Minecraft snapshot and a lwjgl nightly, but that didn't help either. Why am I having this issue?

**regor210** · July 25th, 2012

Maybe your having a permisstions issue?

To open a terminal press ctrl+alt+t all at the same time. Then cut and paste the following command into the terminal window minus the $.

#make sure everything has permission for you to run it.

$ sudo chmod -R 777 .minecraft
---------------------------------
If thats no help try running Minecraft in terminal and post what you get after you hit t. That is if theres an error.

**dmaxel** · July 25th, 2012

Originally Posted by regor210

Maybe your having a permisstions issue?

To open a terminal press ctrl+alt+t all at the same time. Then cut and paste the following command into the terminal window minus the $.

#make sure everything has permission for you to run it.

$ sudo chmod -R 777 .minecraft
---------------------------------
If thats no help try running Minecraft in terminal and post what you get after you hit t. That is if theres an error.

Tried the permissions tip, but that didn't help.

I launched it in the terminal, and discovered I was using OpenJDK 6 while I had both versions installed. So I removed OpenJDK 6 so I could use OpenJDK 7. It used OpenJDK 7 successfully but it didn't fix the chat problem.

This is really weird...? I have this problem for chat as well as Minecraft commands.

**tdawgf** · July 30th, 2012

I had a similar problem in the past on windows but it was because I was using a 32bit version of java on a 64bit OS. Not sure if that is possible in Ubuntu though.

**dmaxel** · August 1st, 2012

That wasn't my problem, but I finally figured it out! Apparently, my keyboard is special and Ubuntu decided to make it special when it mapped it out. So, for my enter key, it was using the "KP_Enter" function. I had to remap it to use the "Return" function. Now it works just fine.

More info: http://askubuntu.com/questions/24916...p-certain-keys

**KaizerLinux** · August 2nd, 2012

Originally Posted by efflandt

I have been using lwjgl 2.6 only because movement keys would occasionally stick with lwjgl 2.4.2 that came with minecraft.

Ah! My movement keys keep sticking as well. How do I update lwjgl? Synaptic?

**efflandt** · August 2nd, 2012

You can get lwjgl at
http://sourceforge.net/projects/java...al%20Releases/

You download the lwjgl file with the version number. I have been using 2.6 since minecraft beta versions, which works with openjdk-6, even for minecraft 1.3.1 in 64-bit 12.04. If you are using openjdk-7 or Java 7 you could try lwjgl 2.8.4 (since someone else seems to be mentioning that).

If you right click on the zip file the Archive Manager can extract it to a directory. Then you need to copy and replace following files from lwjgl-(version)/jar/ to .minecraft/bin/

jinput.jar
lwjgl.jar
lwjgl_util.jar

And following from lwjgl-(version)/native/linux/ to .minecraft/bin/natives/

libjinputlinux.so
libjinputlinux64.so
liblwjgl.so
liblwjgl64.so
libopenal.so
libopenal64.so

That should fix the sticky movement keys that occasionally happen with lwjgl 2.4.2 included in minecraft.