Re: Minecraft.jar problems
This might be an issue with your jre.
Try installing the openjdk-7-jre package, and removing openjdk-6-jre. It might work better.
Re: Minecraft.jar problems
The only reason why I have OpenJDK6 installed, is because of Netbeans. Can I make NetBeans use OpenJDK7 instead? I remember installing NetBeans and it came with OpenJDK6.
Edit: I ran Minecraft with OpenJDK7, and the same thing still happened. Surely that can't be the problem. :(
Re: Minecraft.jar problems
Hmm...
The only time I've ever had this issue is when using a touchpad. I was accidentally clicking when moving my finger around.
I fixed it by going to the Mouse settings, going to the Touchpad tab, and unchecking the "Click with touchpad" setting.
Re: Minecraft.jar problems
These are the only input settings i have.
http://i45.tinypic.com/2r77gnm.png
And here are the only mouse settings i have.
http://i50.tinypic.com/15mjkfk.png
Doesn't look like there is anything about that in there.
I'm going to try running it in OpenJDK6. I'll see if that helps some how.
Edit: When I play the game, I don't use the touchpad at all either. I use a USB mouse instead.
Playing it on JDK6 doesn't help at all, actually, I think its worse.
Re: Minecraft.jar problems
Then you shouldn't have issues with the mouse.
It must be with window focus. Maybe the system thinks the mouse is going over other windows?
There should be a way to adjust window focus settings in Ubuntu. I just can't remember it at the moment, and I'm using Fedora. :(
Re: Minecraft.jar problems
This is really strange. I even went to full screen view, and it still didn't work right. Guess I'll have to find an alternative to Minecraft for Linux.
Re: Minecraft.jar problems
I have been running minecraft since its 1.8 beta (before 1.0 release) in 64-bit Ubuntu w/openjdk-6 and never had the problem you describe in regular minecraft. I have also run it on both 64-bit Ubuntu and Lubuntu that share a common /home partition, but not that frequently because it is a 1 GHz 2 core tablet PC w/10.1" 1280x800 screen. On that or desktop on 32" 1080p HDTV I typically run full screen, not in a window.
The only thing I can think of is that classic X from years ago would typically only focus on the window the mouse cursor was actually on at the time, instead of the last window clicked. So under Openbox Configuration Manager > Mouse > Focusing Windows, make sure that "Focus windows when the mouse pointer moves over them" is NOT checked. Although, if that was checked it would also tend to move keyboard focus. So if it is a laptop, maybe it has something to do with dragging a thumb on the mousepad.
I usually go to less than full screen when switching to a different workspace to check the minecraft wiki in a web browser, because sometimes when I do that full screen, the keyboard does not respond when I go back. But if I just pick up something out of my inventory with the mouse and put it back in, the keyboard works.
The only time I have had the in game mouse cursor freeze is with tekkit (which is a separate minecraft with a bunch of mods added) and not even sure when that happens, possibly when closing the gui for one of the mod tools. But if that happens, I just hit "E" twice (to go into inventory and back to game) and it clears up.
You may want to upgrade lwjgl. v2.4.2 distributed with minecraft occasionally results in stuck movement keys (press key in same direction you are moving to release a stuck key). So I have been using lwjgl 2.6 (most recent is 2.8.4). It is a zip file that involves replacing files in ~/.minecraft/bin and natives subdirectory under that.
Re: Minecraft.jar problems
Have you tried the in-browser version? I had this problem awhile ago, but the browser version worked fine for me.
Re: Minecraft.jar problems
@effladft thanks for all that information. I'll try some of it and tell you how it turns out.
@blue, I've tried that in chromium and the iced tea plugin always crashes.