My current Problem is, that when I try to install Ubuntu 12.04 Desktop, neither unity nor gnome are installed. During the installation, I am prompted with the message that only the core is installed, and which additional packages I would like to have installed. When I select ubuntu-desktop, the installer grabs some packages and installs them, but after completing the installation and booting into my Ubuntu, i dont get any GUI, but instead I have the command line interface.
When I try to start a new Unity session, i get an error saying that Unity is not installed, so I tried to install it. However this changes nothing, my PC still boots into the Command Line.
Are there any solutions to my problem? Any help would be greatly appreciated. Thanks in advance.
EDIT: I tried to fix it with the following commands:
$ sudo apt-get install ubuntu-desktop
$ sudo apt-get install gdm
$ sudo /etc/init.d/gdm start
When I try to boot, I get the Ubuntu splash screen, but then the screen mainly shows white squares, with a few black ones at the top.
Update
I tired to use a new installation disk (with the complete ISO). However I am unable to install Ubuntu.
When I try to start the live system, the screen shows the Ubuntu splash, and then turns and stays white. I can get into the command line via Alt+Ctrl+1, but doesn't really help me.
If I try to install Ubuntu (32 and 64-bit), the same thing happens, except that I cant get into the Command Line.
Could this be a problem with the standard graphics driver of Ubuntu or is the graphics card broken?