If you switch back to VBoxVGA the auto adjust works correctly.
I obtain fhe VBox.log according to the following procedure:
I have attached the VBOX.log.Re: Auto resize guest display no longer working
Postby socratis » 22. Jan 2019, 13:57 Pick one VM only. We need to see a complete VBox.log, from a complete VM run, where the problem occurs:
Start the VM from cold-boot (not from a paused or saved state) / Observe problem / Shutdown the VM (force close it if you have to). With the VM completely shut down (not paused or saved), right-click on the VM in the VirtualBox Manager and select "Show Log". Save only the first "VBox.log", ZIP it and attach it to your response. See the "Upload attachment" tab below the reply form.
Do you have a fix for this problem?
Thanks.
regards,
Bob