Guest additions newer than 5.0.16 cause X to fail in Ubuntu 15 and 16

[raynebc]

As reported on the forum a couple times, most recently here: ​https://forums.virtualbox.org/viewtopic.php?p=364318#p364318

In that thread, Michael indicated Oracle can no longer can reproduce the wide spread problems where the newer versions of the guest additions (newer than 5.0.16) caused the video interface to not launch in some versions of Linux, so he asked me to open this ticket.

My host OS is Windows 7 Pro x64 and the affected guest OSs are Ubuntu 15.x and 16.04 LTS. Originally I just grabbed the generic Ubuntu 15.10 VM image from osboxes.org and installed some various packages mostly just related to building a cross-platform application that I program for. The Ubuntu 16 VM was created by making a clone of the Ubuntu 15 VM within the Virtualbox manager and allowing the OS to upgrade to Ubuntu 16.

I will attach two sets of logs. One of them is a normal boot and shutdown while the version 5.0.16 guest additions are installed. The other set reflects the botched boot up when the 5.0.22 guest additions are installed and me manually opening a virtual terminal to issue the shutdown command.

[raynebc]

Successful boot and shutdown with version 5.0.16 additions

[raynebc]

Malfunctioning boot while 5.0.22 additions are installed and shutdown via virtual terminal.