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I have a unix binary file built with QT and OpenGL which I'm trying to execute on linux-64. It is a simple visual program that shows 2d and 3d graphics.

I have installed all necessary dependencies such as QT and openGL libraries. However, I have stuck with the following error trying to execute the binary

QXcbIntegration: Cannot create platform OpenGL context, neither GLX nor EGL are enabled

However, the binary eventually runs but with some missing features such as 3D graphics.

my setup includes: virtual linux-64 using virtualBox, Vagrant, x-11 forwarding, and a Mac machine.

xarlymg89
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salamon
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  • Try running `glxinfo`. If it tells you to enable 3D acceleration you may have to shutdown virtualBox to change the settings. –  Jun 28 '15 at 19:44
  • glxinfo shows a log. I believe 3d acceleration is enabled. (However, direct rendering is set to NO, not sure if this is related). – salamon Jun 28 '15 at 21:04
  • *"However, the binary eventually runs"* so that wasn't an error, it was just a warning. And since you've got no direct rendering, you can't use any OpenGL rendering (2D or 3D). – peppe Jun 28 '15 at 21:46
  • I suppose then that indirect rendering is being enforced, and OpenGL should still works (potentially slower). However, I have tried to enforce direct rendering by reinstalling drivers but still no luck. – salamon Jun 29 '15 at 05:20

4 Answers4

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Eventually I realised that OpenGL 3.3 wouldn't work easily on virtual machines .. yet. I had to boot from ubuntu usb and work from there by installing latest mesa 3d package.

salamon
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This shows a similar issue and the developer in the comment said our 3D support is not very clean in Linux guests, hence the warnings. You can give a try to VMware.

Vedanshu
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  • thanks for the hint. Eventually I realised that OpenGL 3.3 wouldn't work on virtual machines .. yet. I had to boot from ubuntu usb and work from there. – salamon Jul 16 '15 at 02:41
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After some time trying to get some opengl working on a particular locked down linux box, I ended up going back to Qt Creator 2.5.2 .

http://download.qt.io/archive/qtcreator/2.5/

http://download.qt.io/archive/qtcreator/2.5/qt-creator-linux-x86_64-opensource-2.5.2.bin

After getting it on the linux box...

chmod u+x *.bin
./qt-creator-linux-x86_64-opensource-2.5.2.bin

And after a short installer, Qt Creator is working!

Basically QtQuick is a requirement in any Qt Creator built after 2.5 (aka Qt 5.x) and QtQuick NEEDS opengl libraries and support.

Hope that helps.

phyatt
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I see this problem when executing Qt App, I was executing in dash prompt. (Ubuntu 16.04 has dash by default). I changed to bash prompt and rebuilt my QT App. This error is gone. To configure bash I used below command.

sudo dpkg-reconfigure dash
Rajendra Badam
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