virtualbox 下运行Ubuntu 8.10的分辨率和guest additions的问题。

 使用virtualBox 2.2.0安装Ubuntu 8.10虚拟机会遇到ubuntu虚机的屏幕只能达到800x600的问题。以下为解决办法：

(在笔记本，英文XP sp2,virtualbox 2.2.0,ubuntu 8.10环境下测试没问题)

Though I only use Debian on all my machines, I like playing with new Ubuntu releases, just in case I have to set it up on someone else’s machine. I use VirtualBox for testing.

When trying the upcoming new Ubuntu 8.10 release, and after installing the VirtualBox clients on the guest, I had the following issues:

First, the video driver refused to give me more than a 800×600 resolution. This can be worked around by adding the following lines in the xorg.conf file:

Section "Device"
        Identifier      "Configured Video Device"
        Driver          "vboxvideo"
EndSection
 
Section "Monitor"
        Identifier      "Configured Monitor"
EndSection
 
Section "Screen"
        Identifier      "Default Screen"
        Monitor         "Configured Monitor"
        Device          "Configured Video Device"
EndSection

A second issue was the mouse grabbing which did not work at all. Adding the following lines in the xorg.conf file has fixed the issue:

Section "InputDevice"
   Identifier   "Configured Mouse"
   Driver       "vboxmouse"
   Option       "CorePointer"
EndSection

You need to restart Xorg after amending the file so that the changes are taken into account.

"Changing screen resolutions in Ubuntu 8.04 is done with RandR, which is not supported by VirtualBox. So you’ll also need to set a resolution manually. Find the screen section, which should look like this:

Section "Screen"
 Identifier   "Default Screen"
Monitor  "Configured Monitor"
Device  "Configured Video Device"
EndSection

And replace it with this, but change 1024×768 to your preferred resolution:

Section "Screen"
 Identifier  "Default Screen"
 Device  "VirtualBox graphics card"
 Monitor  "Generic Monitor"
 DefaultDepth  24
 SubSection "Display"
 Depth  24
 Modes  "1024x768"
 EndSubSection
EndSection

Save, exit the editor, and log out. You should now have a large virtual machine window, as well as mouse pointer integration.