Resolutions not detected by xrandr
I have just intalled Ubuntu in VirtualBox.
While I am configuring the display in System->Preferences->diaplay
only two modes are visible 640x480 and 800x600
I also tried xrandr to view what modes are supported
but it also shows only these two modes
I am using Dell Studio 1555 which is having max resolution
How can I make my Ubuntu detect other resolutions ?