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SOLVED! I noticed the very first message in my .xsession-errors ... i.e. libGL error: failed to load driver: swrast So, I checked this out and found ... Problems with libGl, fbConfigs, swrast through each update? So... I uninstalled and re-installed the NVIDIA drivers (the process does a heap of stuff with links, libs and the X environment). I used the ...


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LightDM loads settings from multiple places. This list from the Ubuntu documentation page shows the load order, with later ones overriding earlier locations. LightDM configuration is provided by the following files: /usr/share/lightdm/lightdm.conf.d/.conf /etc/lightdm/lightdm.conf.d/.conf /etc/lightdm/lightdm.conf System provided configuration is stored in ...


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Mikewhatever's suggestion was right: i created lightdm.conf with username to log in automatically. Here is the code: sudo mousepad /etc/lightdm/lightdm.conf Paste following code in mousepad: [SeatDefaults] user-session=xubuntu autologin-user=/usernametologin/ Then save and reboot. Next time xubuntu will go directly to your desktop without greeting ...


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I solved the problem by liberating some free space(about 3g). You may cut data stored on your computer from any folder e.g Desktop or Downlload or home etc. Step1: Ctlr+alt+F1 Enter login and password Step2: Connect a pen drive or USB or external hard drive with enough free space(nb:depending on how much data you wish to cut) Sudo fdisk -l (to verify name of ...


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You removed the module... but you didn't remove the requirement from your PAM configuration! If you edited the file /etc/pam.d/lightdm you now need to (through a TTY or root-prompt from recovery mode) edit it again and remove the line: auth require pam_google_authenticator.so nullok If you edited any other file in the /etc/pam.d/ directory, you need to ...


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you have alot of broken packages first connect with ssh and run sudo apt-get -f install -y test it maybe solve your problem if do not effect wait for other answer and if you want test it note : after run it apt remove all broken pakage from your system some time removed you needed package so accuracy use it also it have low risk sudo apt-get ...


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After switching to lightdm you should first issue this command: gsettings set com.canonical.unity-greeter draw-user-backgrounds 'true'   Resource: http://askubuntu.com/a/334992/488702


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Fixing a package management problem can sometimes be a bit tedious but it will all work out in the end. I'm pretty experienced at interpreting apt-get and dpkg error messages. The problem you face right now is that your apt-get remove lightdm* command contains a wild-card * and so apt-get is trying to remove way more packages than it reasonably should. ...


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The problem has a far easier solution than what I first looked for: In the login screen, open the Accessibility menu – one of the icons in the top right corner – and disable High Contrast mode. So it's not a bug, it's accidentally for example hitting the shortcut key to enable the High Contrast mode. It's made more confusing by the fact/bug that it's not ...


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In /etc/lightdm/lightdm.conf Go down the file until you get to: # greeter-hide-users=false Un-comment it, make sure the value is false.


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Error was in syntax: xinit /home/ashley/Launch_Scripts/XP64.sh -config /path/to/modified.xorg.conf Should be: xinit /home/ashley/Launch_Scripts/XP64.sh -- -config modified.xorg.conf Both xorg.conf and modified.xorg.conf are located in /etc/X11/


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Have you tried this: sudo nano /etc/X11/Xsession and write this in: [Default] name=Xsession orge=/etc/X11/Xsession And then enter this: sudo apt-get -install --reinstall ubuntu-desktop sudo apt-get update sudo apt-get upgrade sudo apt-get dist-upgrade and it might work fine this way.


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I had the similar issue with Ubuntu desktop 15.10. My issue was related to nvidia graphics card driver. After installing the driver from ppa resolved my issue. I was also stuck with the login loop at the unity desktop at the time of start up. Could you please elaborate regarding your case? I know this answer may not be applicable in your case.


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You can reset your unity before trying to login Ctl + Alt + F1 login then try Ctl + Alt + F7 install unity-reset Installing unity-reset in tty: sudo add-apt-repository ppa:freyja-dev/unity-tweak-tool-daily sudo apt-get update sudo apt-get install unity-tweak-tool sudo apt-get install unity-tweak-tool To reset tweak tool unity-tweak-tool --reset-unity ...


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so in the end this had nothing to do with drivers. it turned out to be all about lightdm and the greeter session. somehow or another the gnome-session package was either messed up or not installed. what clued me in was the debug output of /usr/sbin/lightdm -d which complained that failed to find session configuration default and failed to create greeter ...


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sudo systemctl enable lightdm should work (at least it does in runlevel 5). Try removing the nvidia drivers and use the nouveau ones to start Ubuntu and install proprietary drivers through "Additional software" (seriously, never install those with .run packages. Always use Ubuntu ways).


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Since you can't just install mdm you need to type sudo add-apt-repository ppa:noobslab/mint then update and type sudo apt-get install mdm mdm-themes. You can use the other official repository or if you have access to the root account. You may be able to run this command without the mdm window. sudo apt-get update sudo dpkg-reconfigure lightdm sudo apt-get ...


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There is another package in the Ubuntu official repository/universe with the same name mdm, see packages.ubuntu.com Package mdm xenial (utils): Utilities for single-host parallel shell scripting [universe] 0.1.3-2.1: amd64 i386 Possibly, you have installed the wrong package. Check: sudo apt-cache policy mdm which mdmsetup I think this should be ...


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You can also add killing all TTY's using pkill -KILL -t: if [ -z "$(lsusb | grep Yubico)" ]; then logger "YubiKey Removed or Changed" # Running the LightDM lock command export XDG_SEAT_PATH="/org/freedesktop/DisplayManager/Seat0" /usr/bin/dm-tool lock ACTIVE_TTY=$(who | awk '{ print $2 }' | grep tty | uniq) echo $ACTIVE_TTY | xargs ...


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Figured it out on my own after two days of trying: The problem was that the .Xauthority file for lightdm got missing somehow. Creating it with touch /var/lib/lightdm/.Xauthority and sudo chown lightdm:lightdm /var/lib/lightdm/.Xauthority fixed the issue.


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This worked for me: Edit ~/.xinitrc: export DISPLAY=":0.0" xhost + openbox Note: in my specific setup, I'm running only openbox. Normally that file is empty or missing in Ubuntu. My guess is that you could remove the "openbox" line and it would work, but I don't have a way to test it right now. If it doesn't work, replace the last line for your window ...


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This might not completely answer your question, but might offer a quick-fix. I also have this problem, using Xubuntu 14.10 so something has broken recently... I find that the mouse is still responsive (in part) so you are able to RMB the desktop and open a terminal. xfwm4 --replace Should do the trick.



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