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Thread: Not Sure What I did...

  1. #1
    Join Date
    Jul 2012

    Unhappy Not Sure What I did...

    Well, every thing was working fine or should I say awesome in Ubuntu 12.04 untill I messed it all up.

    Screen resolution was fine, and everything was working the way it should. However, my Nvidia drivers were not working... I think.

    I opened the Nvidia X server setting, and a window pops up promting me:
    You do not appear to be using the NVIDIA X driver. Please edit your X configuration file (just run `nvidia-xconfig` as root), and restart the X server.
    So I was just like okay, and ran 'nvidia-xconfig' as root. It did something then promted me to restart the X server. I googled how to restart the X server in Ubuntu 12.04 and I found this command
    sudo service lightdm restart
    Without reading anything on the page at all I ran the command (not as root).

    This pretty took a dump on my Ubuntu. Ubuntu works and all still... Im just using a 640x480 resolution.

    After I ran the command it exited the GUI and some words flashed on the screen... didn't really pay attention to what was there, but I can do it again if it helps you help me .

    I restarted Ubuntu and a message came up right after singing in saying that it could not configure the monitor and you have to use this crappy resolution.

    It would be a HUGE help if someone could lend me a hand. I am working on developing Android apps, and it would be great if I could have this thing up and running asap.

    Thank you

  2. #2
    Join Date
    Feb 2008
    Funky Town, AUS

    Re: Not Sure What I did...

    Have you looked in Additional Drivers? You may be able to remove the Nvidia driver and start again.

    Also, when nvidia-config rewrote the xconfig file, it might have made a backup before doing so. You can have a look at that (in the same directory) and copy it back again (don't move it as then you won't have a backup).

    You will find it has probably (re)written an xorg.conf file which can be found at:

    Take a look with:

    nano /etc/X11/xorg.conf
    If that file is blank, it's not your problem. If it isn't, Look in the directory (dir /etc/X11) for something like:

    If you find it, then:

    sudo cp /etc/X11/xorg.conf.bak /etc/X11/xorg.conf
    Control+X and 'y' to exit and save. Reboot.

    The xorg.conf file is generally empty in newer releases but can be used to customise. If you had any tweaks in a custom xorg.conf file you'll need to retweak. If not, you can just make the file blank again by:

    sudo nano /etc/X11/xorg.conf
    ... and delete everything.
    Last edited by Bucky Ball; July 25th, 2012 at 04:44 AM.

  3. #3
    Join Date
    Oct 2009
    Elgin, IL USA
    Ubuntu 14.04 Trusty Tahr

    Re: Not Sure What I did...

    If you run 'sudo nvidia-xconfig' you could probably just log out of X, and then log back in.

    But if you run the following command it has to be run from a console, not from X:

    sudo service lightdm restart
    In other words do Ctrl+Alt+F1, run that command, then Alt+F7 to get back to X.

    What nvidia card do you have? If you have an older card, you might need to use an older nvidia driver instead of nvidia-current.
    i5 650 3.2 GHz, 8 GB, nvidia GTX 750 Ti, 32" 1080p | i7-4700MQ, 8 GB, Intel HD 4600/nvidia GTX 765M, 15.6" 1080p | etc.


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