virtualbox.org

Hi,

Firstly need to point out, this is a Windows 8 x86_64 host and Xubuntu 12.04 guest, unlike my profile.

Tried xrandr and xorg.conf, also looked at http://www.virtualbox.org/manual/ch09.h ... txorgsetup and http://www.virtualbox.org/manual/ch03.h ... gs-display. I gave it the full 128MB of RAM no 2D or 3D accelerations.

Here is the hardware

david@david-VirtualBox:~$ sudo lshw -C display
[sudo] password for david:
*-display UNCLAIMED
description: VGA compatible controller
product: VirtualBox Graphics Adapter
vendor: InnoTek Systemberatung GmbH
physical id: 2
bus info: pci@0000:00:02.0
version: 00
width: 32 bits
clock: 33MHz
capabilities: vga_controller bus_master
configuration: latency=0
resources: memory:e0000000-e7ffffff

I added this as my xorg.conf when the option for 1368x768 did not appear in Display options.

Section "Device"
Identifier "Configured Video Device"
Driver "vboxvideo"
EndSection

Section "Monitor"
Identifier "Configured Monitor"
Option "DPMS"
EndSection

Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
Device "Configured Video Device"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "1368x768"
EndSubSection
EndSection

Then it appeared in Display options, but would not switch resolution when selected.

This executed without error.
xrandr --newmode "1368x768_60.00" 85.25 1368 1440 1576 1784 768 771 781 798 -hsync +vsync
xrandr --addmode VBOX0 1368x768

When at the login screen the screen resolution is 1368x768. But when I get logged in it reverts to 800x600. Then I select the Display Setting, It shows 1368x768 as an option, but when I select it it does NOT switch to the resolution. Guest Additions are installed.

What next steps?

Thx.

David

Undo the xorg.conf you did and install the guest additions (in the guest)
Then use the host+F toggle to go in and out of full screen, or the mouse click and drag to set the display to what ever you want.