black screen can not get in shell

English Install/Boot/Login
#1

I am getting a black screen after installing the ATI driver.
How can I get in init 3 or in shell to solve xorg.conf

Ctrl+Alt-F1 or Ctrl+Backspace is not working
also tried esc when going in failsave .

#2

Als tried type 3 when grub is loading.

#3

Solved hold 3 during failsafe start.