I fixed the problem with my nvidia graphic card using the post #15.
Thank you very much kcpr (mkasprzyk5) without your help I would not be
albe to fix it.
Here how I fixed in details:
Log out and go to the console:
CTRL-ALT-F1
if (like me) you tried to install latest nvidia driver (nvidia-340 ...),
you need to revert back with following commands:
sudo apt-get install ppa-purge
sudo ppa-purge xorg-edgers
sudo apt-get purge nvidia*
Then copy all xorg config files in a temporary dir:
cd
mkdir temp
sudo mv /etc/X11/xorg.conf* ./temp/
Then clean, update, upgrade and reboot the system:
sudo apt-get autoremove
sudo apt-get update
sudo apt-get upgrade
sudo reboot
Go to the console:
CTRL-ALT-F1
Install nvidia 331:
sudo apt-get install nvidia-331 nvidia-prime
Copy the old xorg.conf made by nvidia back in its directory:
sudo cp temp/xorg.conf.nvidia-xconfig-original /etc/X11/xorg.conf
And edit it (I used vi, you may prefer nano):
sudo vi /etc/X11/xorg.conf
To be as the following:
Section "ServerLayout"
Identifier "layout"
Screen 0 "nvidia"
Inactive "intel"
EndSection
Section "Device"
Identifier "intel"
Driver "intel"
BusID "PCI:0@0:2:0"
Option "AccelMethod" "SNA"
EndSection
Section "Screen"
Identifier "intel"
Device "intel"
EndSection
Section "Device"
Identifier "nvidia"
Driver "nvidia"
BusID "PCI:1@0:0:0"
Option "ConstrainCursor" "off"
EndSection
Section "Screen"
Identifier "nvidia"
Device "nvidia"
Option "AllowEmptyInitialConfiguration" "on"
Option "IgnoreDisplayDevices" "CRT"
EndSection
Eventually reboot the system:
sudo reboot
Now I have nvidia set as graphic card and the hardware acceleration
works fine.
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https://bugs.launchpad.net/bugs/1362848
Title:
ubuntu 14.04 after install nvidia binary driver 331.89 black screen
and freeze
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