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So my issue is that for some reason I can't install Ubuntu 14.04.4 LTS. I downloaded the ISO, extracted it, make a bootable USB, changed the bios to allow USB boot and so on. However when I boot the USB and try to either install or try Ubuntu I get error messages that either just boot me back onto Windows or freeze the screen on the purple Ubuntu page. I am using a Lenovo y700, 16 gigs of ram, Intel 17 and nvidia gtx 960.The error message says something along the lines of 

nouveau E[ PFIFO][0000:01:00.0] SCHED_ERROR [UNK06]
Vishnu N K
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su2583
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1 Answers1

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You can try these steps. Boot from the Ubuntu installation USB media you already have created.

Select (highlight) Try Ubuntu without installing and press the E key. Add the nouveau.modeset=0 parameter to the end of the linux line. Then press the F10 key for booting into the Ubuntu Live desktop.

First uninstall the currently installed NVIDIA drivers.Boot the computer, when the GRUB menu appears ...

When the login screen appears press Ctrl + Alt + F1 . Enter your user name and the password, then execute :

sudo apt-get purge nvidia*  
sudo reboot

Now install the latest official stable NVIDIA drivers.Boot the computer, when the GRUB menu appears ...

Highlight the Ubuntu menu entry and press the E key.Add nouveau.modeset=0 to the end of the linux line. Press F10 to boot the Ubuntu operating system.

When the login screen appears press Ctrl + Alt + F1. Enter your user name and the password, then execute :

sudo add-apt-repository ppa:graphics-drivers/ppa
sudo apt-get update
sudo apt-get install nvidia-361
sudo reboot

Note : Maybe it is explicitly necessary to select the NVIDIA adapter in BIOS.

In case you have installed the nvidia driver from their site then uninstall it as per that instructions.Uninstall that driver by running, as root, sh ./NVIDIA-Linux-x86_64-361.28.run and follow the on screen instructions.

Note : The solution I have provide has been tested on Ubuntu 14.04 LTS and Ubuntu 15.10 for two GPUs

wittich
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Ashu
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