Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

My laptop is a Toshiba Tecra M9, running Ubuntu 12.04. When I unplug my laptop from charger it freezes and I cannot do anything. I need to restart it every time to get it to work correctly again.When I installed addition driver from system settings it didn't freeze any more.But the problem is it takes lot of time to switch between windows and opening g edit windows.Is this a problem of my graphics driver? Can anybody please help me to find right graphics driver for my laptop.

In settings it shows my current graphics driver is Quadro NVS 130M/PCI/SSE2

please help me....

share|improve this question

There are 2 Linux drivers, the privative and the open driver, you have the open driver installed try to install the privative driver. It's better if before uninstalling the video driver before install the new driver,

Try to reinstall the Xorg driver on a terminal (Ctrl+Alt+T):

sudo aptitude reinstall xserver-xorg-video-intel 
sudo dpkg-reconfigure xserver-xorg

Install MESA:

sudo apt-get install mesa-utils

So, if you want to know what driver are using use:

glxinfo | grep -i render

Here how install the Linux video driver for Ubuntu:

After install the video driver is good make a actualization:

sudo apt-get update
sudo apt-get upgrade

NOTE: Sometimes the the privative drivers works better than the open driver, but try with them.

Here are a very good video tutorial to win more speed on Ubuntu

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.