Fullscreen mode on 2nd monitor has resolution of primary monitor

[FrancisTurner]

In earlier versions of virtual box 4.2 (haven't checked precsely when it failed but I think it was the version before 4.2.16) when you full screen a win7 Vm runnign on ubuntu that was on the secondary monitor it would correctly resize itself to the size of the secondary monitor. With the last relase or two the resolution that it sets itself too is that of the primary monitor.

This does not apply to linux guests (i tested with a lubuntu guest)

This is problematic if the secondary monitor is smaller than the primary because things fall off the screen. It is merely irritating when the secondary monitor is bigger

[FrancisTurner]

Correction - full screen mode does not work in lubuntu either if the Vm reboots in full screen mode. It looks like it does work (some of the time at least) if you start it up in standard mode and swithc to full screen at the login prompt

With windows however it never seems to work.

An acceptable quick fix/workaround would be to ensure that the Guest additions driver always included the resolutions of both the primary and secondary monitors in the list of available resolutions

[aeichner]

Please reopen if still relevant with a recent VirtualBox release.