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I am stuck with a black screen when booting 14.04. I can log in via CLI but cannot start the GUI. I have tried the standard fixes to no avail. I have tried installing lightdm, and removing and changing permissions of .Xauthority but this made no difference.

/var/log/Xorg.0.log contains the following errors:

[   327.953] (EE) [drm] KMS not enabled
[   327.970] (EE) Screen 0 deleted because of no matching config section.
[   327.987] (EE) FBDEV(0): FBIOBLANK: Invalid argument
[   328.035] (EE) Failed to initialize GLX extension (Compatible NVIDIA X driver not found)
[   328.263] (EE) FBDEV(0): FBIOBLANK: Invalid argument
Zanna
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user1773592
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  • Certainly looks like an Nvidia driver problem. Have you tried booting with `nomodeset` kernel option to check that it's this graphics card error that is source of the issue? If installing the proprietary driver, have you tried to remove the `nvidia-glx` and `linux-restricted-modules` packages then re-running proprietary installer ? (https://ubuntuforums.org/showthread.php?t=808247&p=5228977#post5228977) – taifwa Apr 21 '17 at 16:01

1 Answers1

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From what I understand this error shows that your Nvidia driver has a problem. Did you figure out that you have the driver or not ? You can check it by typing

sudo apt-get install nvidia-*

and see what results do you have. You can also reinstall xorg-xserver so it may solve but your problem.

Ege Sucu
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    It was the NVidia driver. I followed the instructions [here](https://codeyarns.com/2013/02/07/how-to-fix-nvidia-driver-failure-on-ubuntu/) to fix it. Thanks! – user1773592 Apr 22 '17 at 17:37