Minecraft Running Very Slow :(

[UnknownFearNG]

I have tried pretty much everything I can find on the Internet on how to run Minecraft smoothly. It worked flawlessly in 11.10, but now on Ubuntu 12.04, I'm running into some lag issues. I have the latest version or Oracle Java 7 installed as well as my proprietary AMD/ATi FGLRX driver. Has anyone gotten it running smoothly? I have 4GB or RAM and an AMD Radeon HD 6250 card. I just want to get it running smoothly

[regor210]

Goto
http://www.minecraft.net/download
and download minecraft.jar

Press ctrl+alt+t all at the same time. Then cut and paste the following commands into the termminal minus the $ , one at a time.

$ cd Downloads

$ chmod a+x minecraft.jar

$ java -Xmx2048M -Xms1024M -cp minecraft.jar net.minecraft.LauncherFrame

and post what you get

[kaldor]

Using a 6450 here. Seems to be working great.

My recommendation is to try using a lighter desktop environment. Here's how...

1)

sudo apt-get install gnome-session-fallback

2) Log out of your desktop.

3) Choose your name (do not type your password yet)

4) Press the Ubuntu logo by your name and select "GNOME Classic (No effects)"

5) Enter your password and log in.

That drastically increases performance for me. Whenever I know I'll be doing some gaming, I log into the classic session and all is well.

[UnknownFearNG]

Goto
http://www.minecraft.net/download
and download minecraft.jar

and post what you get

27 achievements
182 recipes
Setting user: UnknownFearNG, -1545820482247323704
LWJGL Version: 2.8.3
org.lwjgl.LWJGLException: X Error - disp: 0x2a6f2120 serial: 172 error: GLXBadRenderRequest request_code: 154 minor_code: 1
	at org.lwjgl.opengl.LinuxDisplay.globalErrorHandler(LinuxDisplay.java:316)
	at org.lwjgl.opengl.LinuxContextImplementation.nSwapBuffers(Native Method)
	at org.lwjgl.opengl.LinuxContextImplementation.swapBuffers(LinuxContextImplementation.java:79)
	at org.lwjgl.opengl.ContextGL.swapBuffers(ContextGL.java:175)
	at org.lwjgl.opengl.DrawableGL.swapBuffers(DrawableGL.java:90)
	at org.lwjgl.opengl.Display.swapBuffers(Display.java:644)
	at net.minecraft.client.Minecraft.v(SourceFile:390)
	at net.minecraft.client.Minecraft.a(SourceFile:256)
	at net.minecraft.client.Minecraft.run(SourceFile:657)
	at java.lang.Thread.run(Thread.java:722)

Using a 6450 here. Seems to be working great.

That drastically increases performance for me. Whenever I know I'll be doing some gaming, I log into the classic session and all is well.

I'm currently installing a proprietary driver via Additional Drivers and then I'll give this a try

[regor210]

One more thing.
If you are using java 7 you have to update LWJGL by hand.

http://www.minecraftwiki.net/wiki/Tu...s/Update_LWJGL

And check your java 7 by going here

http://java.com/en/download/installe...2.0-24-generic

[UnknownFearNG]

@regor210, I have updated LWJGL manually and still lagging a bit. I even updated and installed a proprietary drive from Additional Drivers and still nothing.

Here is the output that I get from minecraft.jar:

27 achievements
182 recipes
Setting user: UnknownFearNG, -5480564741801392119
LWJGL Version: 2.8.3
Loading: net.java.games.input.LinuxEnvironmentPlugin
Failed to open device (/dev/input/event13): Failed to open device /dev/input/event13 (13)

Failed to open device (/dev/input/event12): Failed to open device /dev/input/event12 (13)

Failed to open device (/dev/input/event11): Failed to open device /dev/input/event11 (13)

Failed to open device (/dev/input/event10): Failed to open device /dev/input/event10 (13)

Failed to open device (/dev/input/event9): Failed to open device /dev/input/event9 (13)

Failed to open device (/dev/input/event8): Failed to open device /dev/input/event8 (13)

Failed to open device (/dev/input/event7): Failed to open device /dev/input/event7 (13)

Failed to open device (/dev/input/event6): Failed to open device /dev/input/event6 (13)

Failed to open device (/dev/input/event5): Failed to open device /dev/input/event5 (13)

Failed to open device (/dev/input/event4): Failed to open device /dev/input/event4 (13)

Failed to open device (/dev/input/event3): Failed to open device /dev/input/event3 (13)

Failed to open device (/dev/input/event2): Failed to open device /dev/input/event2 (13)

Failed to open device (/dev/input/event1): Failed to open device /dev/input/event1 (13)

Failed to open device (/dev/input/event0): Failed to open device /dev/input/event0 (13)

INSTANCE.absAxesIDs is only 63 long, so 63 not contained
Linux plugin claims to have found 1 controllers

Starting up SoundSystem...
Initializing LWJGL OpenAL
    (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)
OpenAL initialized.

Placed stronghold in INVALID biome at (-52, -43)
Stopping!

SoundSystem shutting down...
    Author: Paul Lamb, www.paulscode.com

@kaldor: I tried launching classic GNOME and it gave me a few errors. Tried running Minecraft, and it was still lagging.

Is there seriously no fix to this lag??

[regor210]

That all looks normal.

lets look at your 3D drivers.

Try these

# update
$ sudo apt-get update
$ sudo apt-get upgrade

$ sudo apt-get install mesa-utils

# video driver 3D test FPS
$ glxgears

#video card and driver information
$ lspci -vmk | grep -A 8 -B 2 VGA

And post what you get.

[UnknownFearNG]

@regor210: glxgears output:

daniel@Darkan:~$ glxgears 
3305 frames in 5.0 seconds = 660.902 FPS
3267 frames in 5.0 seconds = 653.202 FPS
3468 frames in 5.0 seconds = 693.577 FPS
3247 frames in 5.0 seconds = 649.157 FPS
3226 frames in 5.0 seconds = 645.069 FPS
3184 frames in 5.0 seconds = 636.707 FPS
3239 frames in 5.0 seconds = 647.704 FPS
3216 frames in 5.0 seconds = 643.067 FPS
3207 frames in 5.0 seconds = 641.266 FPS
3061 frames in 5.0 seconds = 612.124 FPS

lspci -vmk | grep -A 8 -B 2 VGA output:

daniel@Darkan:~$ lspci -vmk | grep -A 8 -B 2 VGA

Device:    00:01.0
Class:    VGA compatible controller
Vendor:    Advanced Micro Devices [AMD] nee ATI
Device:    Wrestler [Radeon HD 6250]
SVendor:    Acer Incorporated [ALI]
SDevice:    Device 0602
Driver:    fglrx_pci
Module:    fglrx
Module:    radeon

[regor210]

That looks good too.

When your in minecraft and you press F3 what is your fps ?

And what do you get with

$ fglrxinfo

[UnknownFearNG]

It fluctuates between 3, 7, 3, 1, 4, 3, etc. Doesn't go passed 10. If I move around, it immediately drops.