Windows 11, VMWare Workstation, very slow VCL redraw

[A.M. Hoornweg 144]

Hello all,

 

I am using Delphi 11 & 12 inside a VMWare Workstation 17 Pro VM which currently runs Windows 11.  This VM has the VMWare tools installed. This setup used to work extremely well but since about 6 weeks I notice that VCL drawing is abnormally slow, both inside the Delphi IDE itself and inside my own programs. This slowness only happens in a VM running Windows 11, it does not happen in other VM's running Windows 10. 

 

I attach a GIF file here. It shows what happens when I switch the Delphi 11 IDE between code view and form view. The form is just a simple tFrame with a groupbox and some checkboxes, nothing fancy. 

You can literally see the checkboxes being drawn.  I have already tried a "repair installation" of the operating system but that fixes nothing. 

 

I'd be grateful if anyone has an idea what might be the cause of this.

 

 

 

 

 

 

[A.M. Hoornweg 144]

I've found the solution.   Turning OFF 3-D acceleration in the VM made the issue disappear completely!