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I deleted my previous nvidia driver and have tried to install lasted nvidia driver from nvidia.com after first login my taskbar, launcher etc.. haven't worked(cant right click on desktop, just wallpaper is shown).

I searched and tried to solve this problem with old topics almost I tried every suggestion on Internet but I can't fixed my issue yet.

I tried to reset tweak tool with

unity-tweak-tool --reset-unity

the output message is "dconf-WARNING" **: failed to commit changes to dconf: Cannot autolaunch D-Bus without **X11 $DISPLAY**. I haven't came across with that message on forums. I think my problem a bit different from others.

I'm using ubuntu 14.04LTS 64bits. I have got GeForce GT520Mx graphic-card

I want to fix that issue without reinstalling the OS?

Namcho
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  • Have you already tried this: http://askubuntu.com/questions/17381/unity-doesnt-load-no-launcher-no-dash-appears ? The first and second solution works. – Danibix Jun 13 '16 at 07:26
  • Yes I tryed that one. in the first solution-step 4: Find the Unity plugin. Enable it. You will be asked "Ubuntu Unity Plugin requires the plugin OpenGL. Don;t enable Ubuntu Unity Plugin / Enable OpenGL" in that step there is no possibility to disable OpenGL if Ubuntu Unity Plugin wanna be enabled. I did those steps it hasn't worked.

    And at the second solution sudo dconf reset -f /org/compiz/ that command isn't worknig for me as I mention in my post.

     – Namcho Jun 13 '16 at 07:39
  • You have to remove the drivers, that probably are not compatible with your setup (why using untested drivers if you do not know how to recover from the damage you cause???) – dadexix86 Jun 13 '16 at 08:47

1 Answers1

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Method 1:

Go to virtual terminal:

Alt + Ctrl + F1

Login: _
Password: _
sudo apt-get install gnome-panel
sudo mv ~/.Xauthority ~/.Xauthority.backup

Reboot and select gnome on login. Open terminal

Alt + Ctrl + T

sudo apt-get install unity-tweak-tool
unity-tweak-tool --reset-unity
sudo reboot

Method 2: (if Method 1 does not work)

Open virtual terminal and login:

Alt +Ctrl + F1

Login: _
Password: _
sudo apt-get install compizconfig-settings-manager
DISPLAY=:0 ccsm &

Press:

Alt + Ctrl + F7

OR

Alt + Ctrl + F8

sudo apt-get -f install && sudo apt-get --reinstall install unity
sudo ccsm

Find Unity Plugin and enable it. Close the window.

sudo reboot

Method 3: (If Method 2 does not work)

Alt + Ctrl + F1

export DISPLAY=:0   
sudo dconf reset -f /org/compiz/
setsid unity
reboot

________________________________Now_________________________________

Open terminal

Alt + Ctrl + T

lspci -vnn | grep VGA

You will come to know your NVidia model number

Go to http://www.nvidia.com/Download/index.aspx

Don't download, just give the information asked and note down the driver version suggested by them for downloading.

Let's assume it is 123.456

sudo apt-get install nvidia-123
reboot

Access NVIDIA's configuration menu using start button and searching for nvidia

rancho
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