I was having some problems with my laptop (asked a related question yesterday: http://elementaryos.org/answers/after-locking-the-computer-screens-look-all-messed-up) regarding some dual-screen issues. This morning my laptop fan was working at full speed. Looking for some help I found a Q&A that made some sense (I thought): http://elementaryos.org/answers/luna-running-hot-on-my-laptop-1 , so I followed the instructions:
sudo apt-get install linux-generic-lts-raring
wget http://launchpadlibrarian.net/121675171/fixplymouth chmod +x fixplymouth ./fixplymouth
After rebooting, my dual-screen (which used to work fine) stopped working, having this error message when I tried to change second monitor settings:
"required virtual size does not fit available size: requested=(...), minimum=(...), maximum=(...)"
I tried installing AMD Catalyst drivers for my GPU (which apparently went fine, but at the end it said that something went wrong) and when I tried to reboot, I could not get to the desktop anymore: I just get a black screen with the keyboard cursor blinking on the top left corner of the screen.
Any ideas on how to solve this (if there is something I can do :( )?