After updating to Ubuntu 15.04, the screen goes blank when I boot Ubuntu with grub2. I have tried most of the posted solutions (adding nomodeset, changing quiet splash to no splash) but to no avail. What can I do? (I can't access ubuntu's terminal, but I do have access to Windows10)
When the GRUB boot menu appears : Highlight the Ubuntu menu entry and press the E key.
Add the nouveau.modeset=0 parameter to the end of the linux line ... Then press F10 to boot.
When the login screen appears press Ctrl+Alt+F1.
Enter your user name and password.
Identify your NVIDIA graphics hardware by executing:
lspci -k | grep -EA2 'VGA|3D'
Uninstall every NVIDIA related software by executing:
sudo apt-get purge nvidia*
sudo reboot
When the GRUB boot menu appears : Highlight the Ubuntu menu entry and press the E key.
Add the nouveau.modeset=0 parameter to the end of the linux line ... Then press F10 to boot.
When the login screen appears press Ctrl+Alt+F1.
Enter your user name and password.
Install the NVIDIA drivers by executing:
sudo add-apt-repository ppa:graphics-drivers/ppa
sudo apt-get update
sudo apt-get install nvidia-*
sudo reboot
Note 1:
As you did not provide any information about your NVIDIA graphics card check drivers versions.
Replace * with the latest stable main version number (e.g. 355) that supports your NVIDIA GPU.
Note 2:
When you have switchable graphics cards install nvidia-prime (NVIDIA Optimus support) as well.
Note 3:
If you ever have had bumblebee installed before to switch between graphics - also remove this.
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