$ ./FreeCAD.exe
[5652:4816:0513/142502.444:ERROR:gl_surface_wgl.cc(388)] wglCreatePbufferARB not available.
[5652:4816:0513/142502.444:ERROR:gl_surface_qt.cpp(197)] Requested OpenGL implementation is not supported. Implementation: 1
Illegal storage access...
Unhandled Base::Exception caught in GUIApplication::notify.
The error message is: Illegal storage access! Please save your work under a new file name and restart the application!
Segmentation fault
As a very first step try to update your graphic driver. In many cases this fixes the problem.
In case this doesn't help then check: https://forum.freecadweb.org/viewtopic.php?f=4&t=68610
Although this happens on a Linux system the symptoms a very similar to yours and trying to set the option UseSoftwareOpenGL may help.
wmayer wrote: ↑Thu May 19, 2022 11:09 am
Although this happens on a Linux system the symptoms a very similar to yours and trying to set the option UseSoftwareOpenGL may help.
I cannot set any option because app crashed, i saw only loading and then it crashed.
Atticus wrote: ↑Wed May 11, 2022 5:26 am
#1 /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so(+0x300f37) [0x7f05853f2f37]
I use the nouveau driver too and by default I also get random crashes when loading the StartPage. What fixed it for me is to set the option of Use Software OpenGL in the preferences.
In case FreeCAD crashes immediately every time you start it then you can also modify your user.cfg by hand. The file is located in $PWD/Settings, now open it with a text editor and search for the content Name="OpenGL". Replace this group with:
It's probably the application crashes too early. Then a workaround is to move the directory Web tmp. to a different location so that the WebEngine module cannot be loaded. This way FreeCAD should start normally and you can change it in the user settings. Afterwards move the Web folder back.
It's probably the application crashes too early. Then a workaround is to move the directory Web tmp. to a different location so that the WebEngine module cannot be loaded.
I did this, but there is no effect. FreeCad also crashed without creating user.cfg or displaying gui. It created another webdata dir (new) but I don't understand how it can help me.