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lightdm is the X display manager for Ubuntu and killing the processes will effectively disable the graphical user interface of your system. If you do not need the graphical user interface then go ahead and kill the processes but it would be preferable to stop the lightdm service instead of killing the processes with: sudo service lightdm stop ...


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Start at boot into GRUB menu (Esc) Select the Recovery Mode for your kernel Activate the network Open the root shell Install the uninstalled components


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This seems to be a legitimate bug in lightdm, the program that manages the lock screen on Ubuntu 14.04 and later. I was able to reproduce this issue in Ubuntu 14.04.2. I've filed a bug report with the lightdm project, you can find it here. Make sure to comment on the bug report if you've experienced this issue! The workaround (as first mentioned by user ...


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Warning: Take your time reading this first sentence: Before typing the following keystroke, remember that Ctrl+Alt+F7 is your friend. This is the keystroke to type to get back to where you are right now. (probably your guest session) OK? Remember? Sure? OK! Now press Ctrl+Alt+F1 to go to TTY1, which is a full screen terminal (and only a terminal: no ...


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Open your terminal and go to home folder delete the below files and relogin this should solve desktop problem when you relogin they will be recreated with new configuration. cd ~ rm -rf .compiz .config .gconf .gnome .gnome2 .kde .gvfs .local



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