Thank you KOZOS
There was an update from parallels with a patch for Solidworks 2023:
https://kb.parallels.com/en/122790
I tried it with this downloaded patch first but it did not worked, open Gl was still grayed out.
So I checked with the registry editor and had to change several workarounds from 10 to 84000484 than it worked for me.
[HKEY_CURRENT_USER\Software\SolidWorks\AllowList\Parallels and ATI Technologies Inc.]
"Workarounds"=dword:84000484
[HKEY_CURRENT_USER\Software\SolidWorks\AllowList\Parallels Inc. & ATI Technologies Inc.]
"Workarounds"=dword:84000484
[HKEY_CURRENT_USER\Software\SolidWorks\AllowList\Parallels and NVIDIA Corporation]
"Workarounds"=dword:84000484
[HKEY_CURRENT_USER\Software\SolidWorks\AllowList\Parallels Inc. & NVIDIA Corporation]
"Workarounds"=dword:84000484
[HKEY_CURRENT_USER\Software\SolidWorks\AllowList\Parallels and Intel Inc.]
"Workarounds"=dword:84000484
[HKEY_CURRENT_USER\Software\SolidWorks\AllowList\Parallels Inc. & Intel Inc.]
"Workarounds"=dword:84000484
Last edited by a moderator: Feb 9, 2023