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I had been using Ubuntu 13.04 and I chose the upgrade option from the Ubuntu live CD and chose to keep the installed file as it is. The installation successfully completed with an error message saying some older packages may have to be reinstalled. I restarted the computer, but now I can't login to the computer in GUI mode. It gives an error message that it can't find graphics drivers. When I click on the only available button OK, I get the following dialogue box:

enter image description here

and then when I click the first option I get this one :

enter image description here
which never restarts anything.

Clicking the second option gives the following: enter image description here

and clicking OK gives the same dialogue box recursively.

Third option shows a error log file and fourth option lets me smoothly use the Ubuntu 14.04 in GUI mode and my files are safe in my drive.

So how do I get rid of this problem? I assume graphics drivers come with Ubuntu 14.04 itself.

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  • What graphics card do you have?
    – Nattgew
    Apr 28, 2014 at 18:14
  • AMD graphics card. I have intel 4200U i5 CPU.
    – pranphy
    Apr 30, 2014 at 8:44
  • @PrakashGautam Which one exactly? Use lspci in the command line to get the exact spec.
    – mcantsin
    Apr 30, 2014 at 8:49
  • 00:00.0 VGA compatible controller Haswell-ULU Interated graphics Controller (rev 09) 03:00.0 AMD nee ATI Sun [Radeon HD 8600M Series]
    – pranphy
    Apr 30, 2014 at 10:47
  • Same happened to me, just remove graphic drivers, reinstall x.org, lightdm, ubuntu desktop and have fun Apr 30, 2014 at 12:53

4 Answers 4

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I have the same problem every-time when i try installing ATI graphic card drivers on my hp laptop.

I think your problem is your graphic card drivers supported in 13.04 version are not working in the 14.04 version. so you need to uninstall the graphic drivers.

To uninstall the graphic drivers, boot into recovery mode run as root and try uninstalling your graphic drivers if you installed fglrx then you can try this command

sudo apt-get purge fglrx

and reboot

I hope that works

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  • 2
    Hmm, this seems almost correct except that at the end of this the user is left without a graphics driver -- instead using Vesa which probably won't work out too well. We may need some more information about this in order to properly rectify the problem.
    – Chuck R
    May 1, 2014 at 15:32
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Boot into recovery and remove your xorg.conf file, then reboot.

sudo rm /etc/X11/xorg.conf
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  • 2
    This file doesn't exist in my system.
    – pranphy
    May 7, 2014 at 11:39
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log into a teminal:

Hold CTRL and ALT and tap F1

login

issue the command

sudo X -configure

source: How to reset the Xorg / xserver? - top answer at this current time.

Tested on Ubuntu 14.04 by yours truly. I can verify that the command is recognized and accepted. YMMV (I get display already active which in my case is true)

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  • Sorry I may be doing some silly error here; when I do CTRL+ALT+F1 I get a console screen; but I can't login. It says incorrect login. I enter <username> and <password> but it says incorrect login. Now I have installed 13.04 back. I may be able to do that from terminal, to prepare for 14.04 installation. Is that possible?
    – pranphy
    May 5, 2014 at 12:02
  • @PrakashGautam I would prepare for installation by backing up all my data. Once I was sure I had backed up everything I needed I'd wipe the drive and install fresh. Then copy my backed up data onto the system. Since you've installed 13.04 back this question is no longer relevant to your current situation. It's still a valuable question though. We appreciate you bringing it to our attention as it is likely to help others. I experienced too many problems with both 13.04 and 13.10 to consider using them seriously. 14.04 is so far much more stable for me although I still run 12.04 for benchmarks
    – Elder Geek
    May 5, 2014 at 13:41
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Press Ctrl + Alt + F1 and login.

If you've installed fglrx using apt-get/Software and updates:

sudo su
apt-get purge fglrx*
reboot

If you've installed fglrx from AMD's website:

sudo su
cd /usr/share/ati
bash amd-uninstall.sh
reboot

After rebooting, press Ctrl + Alt + F1, login again, and then install open-source drivers:

sudo su
apt-add-repository ppa:oibaf/graphics-drivers # Optional, gives little performance boost
apt-get update
apt-get install --reinstall xserver-xorg-video-intel xserver-xorg-video-ati xserver-xorg-video-radeon libgl1-mesa-dri libgl1-mesa-glx mesa-vdpau-drivers
dpkg-reconfigure xserver-xorg
reboot

And never install fglrx again.

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