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My graphic card is a Nvidia GT540M gDD3 1GB_Hybrid on an Ubuntu 12.04 install.

Installed Ubuntu one day ago.Yesterday it started without any problem but since today I get "The system is running in low-graphics mode". I know this was explained here (How to fix "The system is running in low-graphics mode" error?) but I have done everything and the problem is still there. I can access the system by using Shift during booting, after that "previous linux versions" - "Ubuntu, mit Linux 3.8.0-29-generic". There were like more than 200 updates, so I guess it has to be related to the updates? (just guessing..)

Even though I can access the system, I tried installing the drivers through Terminal, but apparently nothing was changed.

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Did failsafex work with no errors when you did the Shift boot? If not, let's remove-and-purge then reinstall the drivers. – K7AAY Jan 7 '14 at 21:53
In a terminal window try sudo apt-get remove --purge nvidia-current-updates && - sudo apt-get remove --purge nvidia-current and note anything remarkable. Then do sudo apt-get -y update && sudo apt-get -y upgrade followed by sudo apt-get install nvidia-current-updates && - sudo apt-get install nvidia-current – K7AAY Jan 7 '14 at 21:57

After a kernel update, your Nvidia drivers might get messed up. This is how to solve it:

  • When the low graphics message appears, press Ctrl+Alt+F1
  • Log in using by typing your username, then your password
  • Execute the command sudo apt-get purge nvidia* to remove all nvidia packages
  • Now reinstall the right ones with sudo apt-get install nvidia-current
  • Reboot your machine using sudo reboot
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