[ubuntu] Ubuntu 12.04 - Blank screen when switching to virtual terminals

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http://ubuntuforums.org – Hi all, When using ctrl+alt+fn to go to the virtual terminals, I find a blank screen. The terminals work, as I can log in and do stuff blindly, like creating files. Only the graphical mode (ctrl+alt+f7) works. During the splash session, the vts are available and readable, only when I choose a desktop environment they turn to blank. I can reproduce this with my preferred manager, cinnamon, but also with gnome and unity 2d. I also tried an old kernel (3.0.0-12-generic) with the same results. I've been twiking around the grub, and found out that the nomodeset flag makes the vterminal appears, (Hardware)