virtualbox.org

Hi all,

I'm running Ubuntu 10.10 in VB 4.0.2.
Host is Win7 64bit
Monitor resolution in guest OS is 1024 x 768 (4:3). The host resolution is 1440 x 900 and i'd like to set 1440 x 900 also in Ubuntu

I've given guest 1 GiB of RAM & 64 MiB of video memory and I have installed GA:

• VBoxAddition_4.0.2_69518
  VboxAddition_4.0.2-update-69551

Auto-resize & seamless mode work correctly, but if I press Host Key + F the VM goes to fullscreen and I have black at the sides.

I also tried the following: without success: Max resolution is always 1024 x 768 .

Any suggestion would be appreciated.

Thank you

I have the exact same issue. Has anybody responded?

Try and go full screen and then change the resolution, once in full screen hit ctrl-g and check resolution again.

tried that and it did not work. Max resolution is 800 x 600. windows 7 host is set to 1680 x 1050.

As long as dynamic resolutions work, there is no reason that you get black borders in full screen. And I'm going to say this for the 14.382 time, don't believe the max possible resolution noted in the resolution settings of the Guest OS.

I fixed this problem by adding the following line to /etc/X11/xorg.conf
Modes "1680x1050"
I commented out all the other Modes that were already there. After a reboot, I was able to set 1680x1050 via the Monitors control panel.

PS It will be a cold day in hell before I upgrade my Virtualbox software again.

You do realise that providing a resolution in Xorg.conf will disable the dynamic resizing feature?

I was having similar issues. Upgrading to VirtualBox 4.0.4 and installing the Guest Additions for that version fixed the issue. Ubuntu now automatically resizes its resolution when i go fullscreen with virtual box.