I've just installed Ubuntu 12.04 on a single board PC NANO-9452-R10 from an USB pen drive.
After the installation I rebooted the PC. The purple screen with the Ubuntu logo appeared as the OS was loading and the login mask appeared. I wrote the password, hit ENTER and then... the screen went black.
I tried the combination
ALT + R_SYS + R E I S U B and the PC rebooted. Then again, after the login, the screen went black. This time I tried to open a terminal by hitting
CTRL + ALT + T and I typed blindfold
After typing the super-user password the PC rebooted.
I think that Ubuntu doesn't recognise the monitor after the login, or sets as the default monitor something that does not exist.
My question is: How can I change the monitor by typing "blind" commands on the terminal?