I just wanted to switch to a TTY via [Ctrl] + [Alt] + [Fx] but all I see is a blinking cursor. The login prompt doesn't appear. The getty processes are running. I even tried to modify the grub configuration according to this, but I had no luck. What can I do to analyze this behavior? What might be wrong here? I tried to read the dmesg output, the boot.log, but there seems to be nothing really bad inside. It has worked before, but I don't know how long it was when I went the last time into one of the ttys.
Ubuntu 14.04 64bit, NVIDIA GeForce GTX 650 Ti (3 different "additional drivers" tested), Intel Core i7 3770 CPU.
Best Answer
I had a similar issue with my GTX 750 Ti. It's something to do with the drivers, not totally sure what exactly, but adding the GRUB flag
nomodeset
got me a TTY.However, it messed up my GUI at the same time, so this solution may not work for everyone.
Solution - Add the
nomodeset
GRUB flag:Open a terminal Ctrl+Alt+T
Enter
sudo nano /etc/default/grub
- You can replace nano with whatever your favorite text editor is.Find the line starting with
GRUB_CMDLINE_LINUX_DEFAULT
and appendnomodeset
to its end. For example:GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset"
Run
sudo update-grub
- this will make the above change take place.Reboot - you should now have a working TTY.
If you reboot and your GUI is messed up, you'll have to remove the
nomodeset
flag, but that will most likely remove your ability to access a TTY - so you'll have to decide.Messed up GUI - Remove
nomodeset
flag - It's exactly the opposite of adding it:Open a terminal Ctrl+Alt+T
Enter
sudo nano /etc/default/grub
- You can replace nano with whatever your favorite text editor is.Find the line starting with
GRUB_CMDLINE_LINUX_DEFAULT
and removenomodeset
from its end. For example:GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
Run
sudo update-grub
- this will make the above change take place.Reboot.