I have a NVIDIA GeForce GTX 580 graphics card and I installed Ubuntu 12.04 using the nomodeset option. Now when I start the PC, in the login screen I can't move my mouse and then a black screen appears and the following message is repeated:
GPU lockup - switching to software fbcon
Failed to idle channel 1
PIPFO playlist Update failed
I know I have to install the NVIDIA drivers, but how can I access the terminal?
I tried Ctrl+Alt+F1, but it didn't work.
I solved the problem forcing the GRUB to appear by pressing Shift repeatedly while starting the PC. Then I introduced nomodeset again and I followed this steps.
In the GRUB screen select your Ubuntu installation and press Tab , find the line that begins with the word Linux and move to the end of this line , there should be something like : "quiet splash" , add the nomodeset in the brackets, press Escape to return to the previous menu and boot your system.
To make it permanent:
sudo nano /etc/default/grub
Add the nomodeset again press Ctrl+O to save and Ctrl+X το exit. Then give sudo update-grub
