FreeBSD VBox Guest does not run X11 at 1440x900

Malcolm Matalka mmatalka at
Thu Oct 6 17:26:14 UTC 2016

Warren Block <wblock at> writes:

> On Thu, 6 Oct 2016, Malcolm Matalka wrote:
>> Hello,
>> I am running FreeBSD as a virtualbox guest on a OS X.  My Mac is set to
>> resolution 1440x900 and my X11 config in the VM is set to this as well.
>> After running freebsd-update fetch and install and upgrading all my
>> packages I cannot seem to run X in VBox at that resolution.  If I bring
>> my Mac to 1680x1050, I can run that (but it's not super enjoyable due to
>> some poor redraw latency).  And I can run at 1080x1024.  I tried
>> 1400x1050, which did not work as well.
>> What happens when I try to run at 1440x900 is that the screen is only
>> roughly the size of the console window.  It is running X, I can do all
>> my stuff but the screen is small.  xrandr claims it is running at
>> 1440x900.
>> Has anyone seen this?  I feel like the resolution might be a red herring
>> but I have no way to determine this.
> Install the VirtualBox Guest Additions (emulators/virtualbox-ose-additions) inside the VM.  Then use what it provides as an X driver, which
> should be automatic.

They are installed.  To be clear: I have been running this setup for
over a year.  I did a freebsd-update and it no longer works.

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