I tried editing /etc/X11/xorg.conf as detailed here: Brightness not working after installing NVIDIA driver

My Ubuntu MATE installation on my MacBook Pro Mid-2010 13" now gets stuck at the "UbuntuMATE" boot screen. It just freezes there.

My graphics card is an NVIDIA GeForce 320M.

  • Can you get to a tty? ctrl+alt+F1
    – Pabi
    May 1, 2015 at 0:33
  • @Pabi nope... just stays where it is
    – arcetera
    May 1, 2015 at 0:35
  • Can you boot into singleusermode using grub? How to: unix.stackexchange.com/questions/4027/…
    – Pabi
    May 1, 2015 at 0:38
  • @Pabi Would Ubuntu's Recovery Mode do the job?
    – arcetera
    May 1, 2015 at 0:39
  • Yes you can enter a root shell from there and revert the changes you made.
    – Pabi
    May 1, 2015 at 0:41

1 Answer 1


You can use grub to enter a root shell:
Press e when in grub and edit the line looking something like:
linux /boot/vmlinuz root=/dev/sda4 ro quiet splash to
linux /boot/vmlinuz root=/dev/sda4 ro single.

Alternatively you can use ubuntu recovery and launch a root shell from there.

Then just revert the changes you made to /etc/X11/xorg.conf and reboot.

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