[PyQt] Error: Failed to load opengl32sw.dll

[Phil Thompson]

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