Today I need to install Linux machine on Oracle VM Virtual Box Manager. I have installed Oracle enterprise Linux 6.4. After installation I faced screen resolution issues. I thought I can easily able to make it possible through system – preference – display. But required resolution is not present on that. So I was not able to make it possible. Then I have tried some other ways to do, finally I am able manage screen resolution after doing some steps.

Steps for manage Screen resolution on Oracle VM Virtual Manager.

Click on Oracle VM Virtual Manager Devices tab and select Insert Guest additional CD image.

This will mount one image on your system media

#df -hl

Filesystem Size Used Avail Use% Mounted on

/dev/sda3 37G 7.5G 28G 22% /

tmpfs 499M 240K 499M 1% /dev/shm

/dev/sda1 485M 55M 405M 12% /boot

/dev/sr0 56M 56M 0 100% /media/VBOXADDITIONS_4.3.28_100309



Enter this mounted directory and run VBoxLinuxAdditions.run script as shown in below image.

Then, do some entries in /etc/X11/xorg.conf, usually I saw this file is not present on system. Touch this file and add below contents.

#cat /etc/X11/xorg.conf

Section “Screen”

SubSection “Display”

Depth 24

Modes “1600×900” #This should be your required resolution

EndSubSection

Device “Device[0]”

Identifier “Screen[0]”

Monitor “Monitor[0]”

EndSection



Now reboot Virtual machine. Will resolve screen resolution problem.