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My system is Dell XPS L502X, with NVIDIA graphics card 525M. For your notice, it is different from this and not completely related to this.

I was having problem of black screen after opening the Ubuntu 14.04. To get out of it I reinstalled Ubuntu 14.04.

After re-installing and adding NVIDIA drivers, system is getting freezed, frequently. So only option left is to press,Alt+F1, then Alt+F7

Already selected the option, while installation

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  • Could you ask about one problem at time. The errors with apt-get have their solution, the problems with the login has another solutions, the problems after installing the Nvidia drivers, another, etc. Instead ask a question per problem.
    – Braiam
    Sep 21, 2014 at 19:23
  • @Braiam Read NB ,it contains all the information. Installed NVIDIA.
    – L.K.
    Sep 21, 2014 at 19:25
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    I read that, still why you include the other problems? Focus your question in one issue at time.
    – Braiam
    Sep 21, 2014 at 19:32
  • Did you run 'sudo apt-get install nvidia-current'?
    – saptarshi nag
    Sep 22, 2014 at 4:40
  • open "Additional Drivers" and install this one Using X.OrgX server - Nouveau displary driver from xserver-xorg-video-nouveau (open source) I had the same problem, it's related to Nvidia diver.
    – αғsнιη
    Sep 22, 2014 at 4:54

1 Answer 1

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Are you sure it's 100% related to the video driver? You could try the following to speed up your computer, too:

  • Install the packages preload and prelink. These take certain actions to make the system faster.

    Execute sudo apt-get install prelink preload in a terminal.

  • Reduce Swap usage. The default swappiness value is 60, which may be too high.

    Open the file /etc/sysctl.conf and set the swappiness parameter: sudo nano /etc/sysctl.conf in a terminal. New line at the end: vm.swappiness = 10, then another linebreak, save with Ctrl+O.

If you apply these changes, your computer should get faster after a reboot.

For your touchpad, you should ask a new question, since this is another problem.

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  • My problem is related is to Drivers only, as when I selected my Graphics driver to Intel, my laptop was not able to restart, so got stuck on a black screen. If this won't harm my system(pardon me, for the ignorance), I will go ahead to implement them.
    – L.K.
    Sep 23, 2014 at 18:21
  • Those changes may only harm your system if you do a typo at vm.swappiness = 10. Otherwise they are safe.
    – s3lph
    Sep 23, 2014 at 18:24
  • Can this problem be, because of system is using NVIDIA extansivley, so slowing down. So if unnecessary use can be stopped.
    – L.K.
    Sep 23, 2014 at 19:37
  • Do I need to add like this, #vm.swappiness = 10
    – L.K.
    Sep 27, 2014 at 16:21
  • This will work, you will be the owner of the bounty.
    – L.K.
    Sep 27, 2014 at 16:27

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