I've got singtech lap top, model-w251hp, with nvidia gt520m 1GB graphic.

I installed Ubuntu 12.10 yesterday and try to update. But I can't find NVidia driver in Settings/Software Sources/Additional Driver/.

So, I typed the following command that I found in some forum:

sudo apt-get install nvidia-current nvidia-settings

After the reboot, my desktop has gone.

No side bar. No keyboard icon or time on top right corner.

Everything except the desktop background has gone. But, I can still press Ctrl+Alt+t and can open terminal and type firefox for browser.



You have an Optimus card. You need to install bumblebee in order to be able to switch between Intel and Nvidia card. Here how to install bumblebee

sudo add-apt-repository ppa:bumblebee/stable 
sudo add-apt-repository ppa:ubuntu-x-swat/x-updates 
sudo apt-get update 
sudo apt-get install bumblebee bumblebee-nvidia linux-headers-generic 
sudo apt-get dist-upgrade

After that restart your system and that's it! You have your video drivers for both card installed. to start application using Nvidia card simply run

optirun <program_name> 

For example

optirun firefox
  • yay!! this works like a charm. now everything is back to normal. thank you so much guy. really. – Khine Moe Mar 20 '13 at 6:31
  • Glad that it helped :D Mark that the answer has helped. – Nikki Kononov Mar 20 '13 at 6:35
  • like that? i'm quite noob and not familiar with forums. – Khine Moe Mar 20 '13 at 6:45
  • No no no :) what you do is select the star right near my message. It's under the up and down vote buttons. – Nikki Kononov Mar 20 '13 at 6:48
  • the right mark? it appears to me with not the star. just the right mark. – Khine Moe Mar 20 '13 at 6:51

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