A few days ago I had to reinstall by ubuntu on my T-400. After the re installation, it required me to upgrade my video driver using a proprietary software. After I restarted my computer, the machine gets stuck at the boot stage, displaying the message “Checking battery state….”
I attempted at searching on Google for ways to remedy this my problem, but no luck. I was frustrated and figured that I might be able to figure something out if I had a terminal. I went to tty1 by pressing
ctrl + alt + F1, I then removed my graphics configuration by issuing the following command
sudo rm /etc/X11/xorg.conf
I then issued a reboot
and everything was fine and I could login into my machine normally.