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[Simone Pernice <1362848@xxxxxxxxxxxxxxxxxx>]

I have a laptop Asus K53s with nVidia GeForce GT 540M. I (freshly)
installed Ubuntu 14.04 64bit and set up nvidia-331 proprietary driver
for the graphic card. I set prime option to run nVidia acceleration and
it used to work fine.

On 25th Janaury 2015, there was an Ubuntu software update (from apt log
I saw it was updated nvidia-settings, and other stuff) after which I see
a black screen instead of the login screen.

I tried to switch to intel graphic card (sudo prime-switch intel) but it
gives erros, it is not able to switch to intel.

I tried to purge nvidia* and then install nvidia-340, but it still shows
black screen instead of login.

The only way to use my laptop is to install:

apt-get install nvidia-current-updates

which is the driver nvidia-304. But it uses the intel graphics card. It
is not possible switch to nVidia neither with

sudo prime-switch nvidia

nor with

nvidia-setting graphic utility.

I need to use my nVidia card for graphic acceleration (OpenGL). At the
moment the laptop is too slow for my activity (CAD).

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to nvidia-graphics-drivers-331 in Ubuntu.
https://bugs.launchpad.net/bugs/1362848

Title:
  ubuntu 14.04 after install nvidia binary driver  331.89  black screen
  and freeze

Status in nvidia-graphics-drivers-331 package in Ubuntu:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 64bit, after install nvidia binary driver
  331.89 from Additional Drivers application then reboot, it shows black
  screen, no login window, I even can't use ctrl+alt+F2 to switch to
  text mode, then I reboot and go to recovery mode, use 'prime-select
  intel' to switch to intel GPU and reboot, everything is fine, but as
  soon as I switch to nvidia GPU, still same issue.

  OS: Ubuntu 14.04 64bit
  Laptop: HP ENVY 15t Nvidia GeForce GT 740M + Intel HD 4600
  Desktop: Unity
  Kernel: 3.13.0
  CPU: Intel® Core™ i7-4700MQ

  Thanks!

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