https://bugs.kde.org/show_bug.cgi?id=457974

--- Comment #28 from Ian H <master.ha...@gmail.com> ---
no change(In reply to Maximilian Federle from comment #27)
> Can you unset LIBGL_DRIVERS_PATH for your program's execution environment?

setting in the launch environment didnt do anything (still had the same path),
but changing the env inside my code (before it's being used) yields this:
libGL error: MESA-LOADER: failed to open nouveau: (null) (search paths , suffix
_dri)
libGL error: failed to load driver: nouveau
libGL error: MESA-LOADER: failed to open swrast: (null) (search paths , suffix
_dri)
libGL error: failed to load driver: swrast
QGLXContext: Failed to create dummy context
failed to acquire GL context to resolve capabilities, using defaults..
Failed to create OpenGL context for format QSurfaceFormat(version 2.0, options
QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize 24, redBufferSize -1,
greenBufferSize -1, blueBufferSize -1, alphaBufferSize -1, stencilBufferSize 8,
samples -1, swapBehavior QSurfaceFormat::DoubleBuffer, swapInterval 1,
colorSpace QSurfaceFormat::DefaultColorSpace, profile 
QSurfaceFormat::NoProfile) 

interestingly, doing the above code change also makes the old version do the
same thing even though the LIBGL_DRIVERS_PATH was already empty
LIBGL_DRIVERS_PATH Before put:  ""
LIBGL_DRIVERS_PATH after put:  ""
libGL error: MESA-LOADER: failed to open nouveau: (null) (search paths , suffix
_dri)
libGL error: failed to load driver: nouveau
libGL error: MESA-LOADER: failed to open swrast: (null) (search paths , suffix
_dri)
libGL error: failed to load driver: swrast
QGLXContext: Failed to create dummy context
failed to acquire GL context to resolve capabilities, using defaults..
Failed to create OpenGL context for format QSurfaceFormat(version 2.0, options
QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize 24, redBufferSize -1,
greenBufferSize -1, blueBufferSize -1, alphaBufferSize -1, stencilBufferSize 8,
samples -1, swapBehavior QSurfaceFormat::DoubleBuffer, swapInterval 1,
colorSpace QSurfaceFormat::DefaultColorSpace, profile 
QSurfaceFormat::NoProfile)

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