LWJGLException: Could not choose visual

Troubleshooting graphics
1

Hello everyone.

I am currently trying to make jMonkeyEngine3 work on my environment (CentOS 5.6 Linux 32bit via Oracle VM VirtualBox).

I downloaded the jME3 SDK installer for Linux 32bit here: http://hub.jmonkeyengine.org/download/246488/
After installing the SDK, I create a new BasicGame project, and run it. The “Display Settings for jMonkey Engine 3.0” window appears and after clicking the “Continue” button, I get this error message in a pop-up window :

Failed to create display LWJGLException: Could not choose visual

What could be the cause of this error?
I hope it is not a graphics card driver issue or the VM causing this.

Best regards,
G. Tatti

2

Well this seems awfully like graficard/driver related, as lwjgl is the opengl binding.

As I run jme problemlessy under arch-linux and ubuntu, it works under linux.
-> does glx_gears run on centos for you?
-> what driver is used by glx of xserver?

(Also was CentOs one of the do it yourself linux(like arch= or more like ubuntu, so I know how to formulate further questions.

3

The VM could be the issue. Definitely try to run glx_gears to see if the VM graphics setup is even exposing open GL properly. I’ve had lots of problems with that in VMs in the past. (And even when working, it’s not great.)

4

Oh, I missed then opengl part, not sure if Virtualbox even have a opengl capable graficcard. (kvm&xen for sure dont)

5
@Empire Phoenix said: Oh, I missed then opengl part, not sure if Virtualbox even have a opengl capable graficcard. (kvm&xen for sure dont)

One time on Virtual Box with full host extensions installed on a Windows VM, I was able to get OpenGL working but performance was horrible.

In general, I just feel like VM’s and 3D graphics are incompatible.

6

Well you can redirect a real graficcard with some luck then its viable, but else I tent to agree. As long as there is not something like vt-x for the graficcard this will not change.

7

Hello everyone.
Thanks for your answers.

I’d like to correct an error i’ve made: the environment is CentOS 5.6 Linux 64bit, not 32bit.
I’ve been misleaded because it was automatically identified as “Other Linux 32-bit” when importing the .ova file in Oracle VM VirtualBox.

So I tried again with the jME3 SDK installer for Linux 64bit and got sadly the same error :S

-> does glx_gears run on centos for you?
glxgears seems to work properly, showing 3 gears. The rotating animation of the gears is not really fluid though.
-> what driver is used by glx of xserver?
I'm quite new to this 3D/OpenGL/GLX/xserver stuff, so I'm not quite sure but I think it is the Mesa driver.
Well you can redirect a real graficcard with some luck then its viable, but else I tent to agree. As long as there is not something like vt-x for the graficcard this will not change.
I'm not sure if this info will help, but the VM has an option for acceleration "VT-x/AMD-V" which is activated by default.

Best regards
G. Tatti

8

There should also have been a bunch of info logs, I think. Maybe provide the whole log up to the point of (and including) the exception.

9

Here is the whole log of the run:

run: Apr 16, 2014 11:59:06 AM com.jme3.system.JmeDesktopSystem initialize INFO: Running on jMonkeyEngine 3.0.5 Apr 16, 2014 11:59:07 AM com.jme3.app.Application handleError SEVERE: Failed to create display org.lwjgl.LWJGLException: Could not choose visual at org.lwjgl.opengl.LinuxDisplayPeerInfo.initDefaultPeerInfo(Native Method) at org.lwjgl.opengl.LinuxDisplayPeerInfo.<init>(LinuxDisplayPeerInfo.java:61) at org.lwjgl.opengl.LinuxDisplay.createPeerInfo(LinuxDisplay.java:788) at org.lwjgl.opengl.DrawableGL.setPixelFormat(DrawableGL.java:61) at org.lwjgl.opengl.Display.create(Display.java:846) at org.lwjgl.opengl.Display.create(Display.java:757) at com.jme3.system.lwjgl.LwjglDisplay.createContext(LwjglDisplay.java:140) at com.jme3.system.lwjgl.LwjglAbstractDisplay.initInThread(LwjglAbstractDisplay.java:113) at com.jme3.system.lwjgl.LwjglAbstractDisplay.run(LwjglAbstractDisplay.java:207) at java.lang.Thread.run(Thread.java:662) Apr 16, 2014 11:59:07 AM com.jme3.system.lwjgl.LwjglAbstractDisplay run SEVERE: Display initialization failed. Cannot continue.

Hope it will help to solve this issue or at least give a clear reason of why it does not work in my environment.

Best regards
G. Tatti

10

Yep, seems that glxgears runs with mesa software driver, so you have no accelerated pixelformat, hence jme fails to start.

11

I know this is old, but I really want to share this:
I had mesa drivers with bumblebee (which I hear is now outdated!? I’m not sure, might be rumours), and I had a similar error.
What fixed it for me was getting the xorg-xrandr package.