QmlProfiler : Plugin initialization failed: Cannot create OpenGL context

user_9484913 0
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I use Qt 6.2.2 in ubuntu 20.04 and I install OpenGL like this:

sudo apt install libgl1-mesa-dev

After I install my graphics card driver (NVDI 470.86) I get this error each time I open QtCreator IDE.

why did this happen and how can I fix this?

I cant compile examples that use qt quick like Qt Quick 3D - Custom Materials Example

QML debugging is enabled. Only use this in a safe environment. qt.quick3d.general: Unable to find ideal GL version. QGLXContext: Failed to create dummy context QRhiGles2: Failed to create temporary context QRhiGles2: Failed to create context Failed to create RHI (backend 2) Failed to initialize graphics backend for OpenGL.

output pictures:

picture error 1

picture error 2

output from glxinfo | egrep -i version

enter image description here

qml opengl qt
2 Answers

I understand that qt creator save its settings in /home/username/.config/QtProject and It understand OpenGL from there.

So I delete my .config folder and reboot my system and let my OS create it again this Fix my problem but as @merosss said that he change his usermod to the video that was one way because qt creator will create it in that path and problem will fix again.

Since I install the NVIDIA driver it seems that Qt cant understand which OpenGL should use and that problem happens.

user_94849130

Had the same problem since this morning. Not sure why this worked (any contribution is appreciated), but I solved it by adding my user to the video group and rebooting:

sudo usermod -a -G video *username*
user_21242450
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