I have a fresh install of Ubuntu 14.10 on my laptop Compaq 420, just a while ago. At login screen, it suddenly becomes black for a split second and then shows it again. Or sometimes, it appears after you typed your username and password then shows the desktop. It also appears when you logout, this time a couple of times before showing the login screen. Is this something to do with the login manager ? I find this annoying so any help would be really appreciated.

Memory: 3.8 GiB Processor: Intel® Core™2 Duo CPU T6670 @ 2.20GHz × 2 Graphics: Mobile Intel® GM45 Express Chipset OS type: 64-bit


Try this. Once you are booted up to the blank desktop... press CTRL + ALT + F1.

apt-get install --reinstall ubuntu-desktop
apt-get install unity
apt-get purge nvidia* bumblebee*
apt-get install nvidia-prime

shutdown -r now

Hope this helps!

  • It's not that I have a blank desktop, it still shows. And I have an intel video card, do i really need to install nvidia drivers ? Thanks. – Darwin Sardual Oct 30 '14 at 17:20
  • steps is to purge the driver and to reinstall...you can still reinstall your intel driver to check this. – vembutech Oct 30 '14 at 17:22
  • The problem still persist. Do you have another workaround ? Thanks. – Darwin Sardual Oct 30 '14 at 17:31

Try switching the terminal (CTRL+ALT+F1) and then remove the configuration file ~/.config/dconf/user like this :

(this action will remove your gnome 3 settings)

sudo service lightdm stop
rm ~/.config/dconf/user
sudo service lightdm start

shutdown -r now

Hope this helps!

  • This doesn't work either but thanks for your help. – Darwin Sardual Oct 30 '14 at 18:12

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