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Xserver keeps crashing on my general user account both in Unity 3D and 2D. It doesn't do it on the guest account.

That's why I want to reset / rollback everything xserver related, hoping this is going to fix it.

Most answers on this involve sudo dpkg-reconfigure xserver-xorg. However, this does nothing for me (generates no output) and I read in other forums, that it's deprecated.

So, what's the current way to reset all xserver / xorg options; what's the alternative to sudo dpkg-reconfigure xserver-xorg? X crashes during work, not before login or so. And the effect of a crash is, that I get thrown out of the session, not a freeze or machine crash.

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@Jorge Castro The version of Ubuntu is important here, as things have changed. There is no more "gdm" and neither works the dpkg-reconfigure, I believe. –  thomas Jul 4 '12 at 21:08
    
have you tried resetting xorg.conf? (backup and remove) –  Paulius Šukys Jul 24 '13 at 11:10
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3 Answers 3

If your guest account is not affected this could be a user-specific setting that is causing the problem. Try deleting ~/.config/monitors.xml

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Thanks, but that didn't help. Actually I don't think it's the monitor settings, as the guest account doesn't crash, even when I configure both monitors ... –  thomas Jul 4 '12 at 20:03
    
OK, while that was not really it, the idea behind it solved my problem: one-by-one deleting files in ~/.config dir did work for me! :-) @Jorge Castro: if you modify your answer into this direction, I'll mark it "accepted" –  thomas Jul 5 '12 at 15:10
    
I have no idea what files you deleted, feel free to add all that information in the answer though, glad you got it sorted! –  Jorge Castro Jul 5 '12 at 15:12
    
This helped me resolve some problems with fglrx (AMD CCCLE). –  Nick Feb 2 at 22:56
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The alternative to sudo dpkg-reconfigure xserver-xorg is sudo X -configure

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To reconfigure packages that are already installed, you can refer to:

Ubuntu Manpage: dpkg-reconfigure - reconfigure an already installed package

Using the terminal:

  1. If you've got to a blank screen while booting up, press CTRL + ALT + F1 to access the terminal.

    Then, depending on your desktop environment, terminate the X using:

    • For Gnome (Ubuntu): sudo /etc/init.d/gdm stop

    • For KDE (Kubuntu): sudo /etc/init.d/kdm stop

    • For Xfce (Xubuntu): sudo /etc/init.d/xdm stop

  2. For the reconfiguration process:

    sudo dpkg-reconfigure xserver-xorg
    

    Note: A backup is always recommended before running the configuration, so you can do it using:

    sudo cp /etc/X11/xorg.conf /etc/X11/xorg.conf.backup
    
  3. Restart the GUI:

    Again, this depends on the desktop environment, so:

    • For Gnome (Ubuntu): sudo /etc/init.d/gdm start

    • For KDE (Kubuntu): sudo /etc/init.d/kdm start

    • For Xfce (Xubuntu): sudo /etc/init.d/xdm start


If fail to perform the above steps, one can always edit the /etc/X11/xorg.conf manually and replace the file contents.

Refer to:

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For sudo /etc/init.d/gdm stop I get sudo /etc/init.d/gdm command not found and sudo dpkg-reconfigure xserver-xorg does not do anything for me, as I pointed out in the question. Thx for answering though ... –  thomas Jul 4 '12 at 19:21
    
@thomas Very strange, but just added the links were you can collect the default contents for the xorg.conf file. Perhaps manually setting the file contents can help you. –  Zuul Jul 4 '12 at 20:52
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In Ubuntu 12.04 the display manager is lightdm, not gdm. Why the dpkg-reconfigure doesn't work, I don't know! :-/ –  thomas Jul 4 '12 at 21:04
    
@thomas Perhaps reinstalling the dpkg itself may allow you to use it! –  Zuul Jul 4 '12 at 21:27
    
In my case, after the login screen, the screen was black. The steps outlined in this answer solved it. I had to login through SSH from another computer to enter the commands. –  Serrano Pereira Jul 28 '13 at 13:00
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