When the whonix operating system is started, it shows the black screen and nothing happens. In the recovery mode the last message it shows is:
mptbase ioc0 initiating bringup
Nothing happens after that.
Tried to increase ram, nothing helped.
can you support your ticket with some screenshots ? i cant reproduce or know what is going on through what you have mentioned.
Could you try installing a Debian in VirtualBox to see if you still have the same issue.
Try to update the VirtualBox version, on some old versions this can happen