[PyQt] Error: Failed to load opengl32sw.dll

[Zhao Lee]

I copied libEGL.dll, libGLESv2.dll,opengl32sw.dll  and d3dcompiler_*.dll to the directory my pyqt5 program resides in,  then replace all DLLs with the name containing "140" in
C:\Users\i\AppData\Local\Programs\Python\Python36-32\Lib\site-packages\PyQt5\Qt\bin
with those packed with shiboken2, then the issue gone.








At 2020-02-10 20:32:21, "Phil Thompson" <phil at riverbankcomputing.com> wrote:
>Yes, and as before, you will have to do some more investigation as 
>nobody else has reported a problem.
>
>
>On 10/02/2020 12:07, Zhao Lee wrote:
>> Yes, but it seems PyQt5 is unaware of those DLLs, so caused the problem
>> 
>> 在 2020-02-10 18:23:57，"Phil Thompson" <phil at riverbankcomputing.com> 写道：
>>> On 10/02/2020 05:03, Zhao Lee wrote:
>>>> Got the following error  with :Python 3.7.4, lateset pyqt5 and
>>>> PyQtWebEngine, on win10 32bit.
>>>> As I've said in the last "QtWebEngineProcess.exe – Bad Image” thread,
>>>> version 5.13.2 of pyqt5 and PyQtWebEngine do not suffer the problem.
>>>> 
>>>> 
>>>> Failed to load opengl32sw.dll (�Ҳ���ָ����ģ�顣)
>>>> 
>>>> Failed to load and resolve WGL/OpenGL functions
>>>> 
>>>> qt.qpa.gl: Software OpenGL failed. Falling back to system OpenGL.
>>>> 
>>>> Failed to load opengl32sw.dll (�Ҳ���ָ����ģ�顣)
>>>> 
>>>> Failed to load and resolve WGL/OpenGL functions
>>>> 
>>>> qt.qpa.gl: Software OpenGL failed. Falling back to system OpenGL.
>>>> 
>>>> Failed to load opengl32sw.dll (�Ҳ���ָ����ģ�顣)
>>>> 
>>>> Failed to load and resolve WGL/OpenGL functions
>>>> 
>>>> qt.qpa.gl: Software OpenGL failed. Falling back to system OpenGL.
>>>> 
>>>> Failed to load opengl32sw.dll (�Ҳ���ָ����ģ�顣)
>>>> 
>>>> Failed to load and resolve WGL/OpenGL functions
>>>> 
>>>> qt.qpa.gl: Software OpenGL failed. Falling back to system OpenGL.
>>>> 
>>>> 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 0, swapBehavior
>>>> QSurfaceFormat::DefaultSwapBehavior, swapInterval 1, colorSpace
>>>> QSurfaceFormat::DefaultColorSpace, profile  
>>>> QSurfaceFormat::NoProfile)
>>>> .
>>>> 
>>>> This is most likely caused by not having the necessary graphics
>>>> drivers installed.
>>>> 
>>>> 
>>>> 
>>>> 
>>>> Install a driver providing OpenGL 2.0 or higher, or, if this is not
>>>> possible, make sure the ANGLE Open GL ES 2.0 emulation libraries
>>>> (libEGL.dll, libGLESv2.dll and d3dcompiler_*.dll) are available in 
>>>> the
>>>> application executable's directory or in a location listed in PATH.
>>> 
>>> All of those DLLs are included in the wheel.
>>> 
>>> Phil
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