VirtualBox Periodically Unable to Display Guest VM Correctly on Dual Display Host (Doc ID 2292990.1)

Last updated on AUGUST 18, 2017

Applies to:

Oracle VM VirtualBox - Version 5.1 to 5.1 [Release 5.0]
Information in this document applies to any platform.

Symptoms

A user running VirtualBox 5.1 on a host machine with two displays connected may find that they periodically cannot display the guest VM on the non-primary display.  This behavior was originally reported in the following environment, but may be seen in subsequent builds:

In this scenario, the user will find that the guest Virtual Machine (VM) may display sporadically on a second display.   If the user then sets the second display as the "master display", then both monitors will show the desktop and the guest VM will work as expected in dual monitor operation until the guest VM is again rebooted, which may cause the behavior to reappear.

This behavior is not seen with earlier releases of VirtualBox.

Cause

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