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I was able to change my background image by the following: sudo gedit /etc/lightdm/lightdm-gtk-greeter.conf Then add: background=/full/path/to/your/photo.png (It has to be png format.)


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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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Virtualization is the easiest way There are even virtual disk images prebuilt. Install Virtualbox from the terminal with sudo apt-get install virtualbox or through the Software Center: Install Chromium OS on a VM under Virtualbox. There are builds here and a step by step installation. If something isn't clear drop me a comment and I'll expand the ...


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I have same problem in 11.04. I solved it by re-installing Compiz. Open a terminal window. Type, sudo apt-get remove compiz and hit Enter Type your password if requested (nothing will show up for privacy), type Y and hit Enter if it asks you for confirmation When that task is done, or if it failed because it wasn't installed in the first place, type, sudo ...


-1

Sounds like this issue: https://bugs.launchpad.net/lightdm/+bug/1420558. In short, LightDM's AppArmor policy isn't (as of Ubuntu 14.04.2 LTS) taking VNC into account. Try removing /etc/apparmor.d/lightdm-guest-session.


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Execute eog using the console and update your question with the output that appears when the problem is reproduced. That, of course, if you can still read it after the new login. UPDATE: As stated in its manual page (man eog), maybe you will get more info using the flag --g-fatal-warnings .


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see if your user is in the "nopasswdlogin" group when logged into that user and typing groups into the terminal. if so remove the group with sudo gpasswd -d $USER nopasswdlogin


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1) Install different desktop manager More of a workaround than solution. Get to tty console, make sure you are connected (or connect with nmcli ). Install alternate desktop manager aka greeter. Examples: sudo apt-get install gdm sudo apt-get install lightdm-gtk-greeter sudo apt-get install lightdm-webkit-greeter Note: if you are getting gdm, you will be ...


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If you don't use Evolution, you could just completely remove it, there are some instructions how to here: How do I completely remove Evolution? Here is the command: sudo apt-get --purge remove evolution evolution-exchange evolution-plugins evolution-common evolution-webcal


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This can be done easily with Ubuntu Tweak. Just click Tweaks, Login Settings, and then "click the button to change the login screen background". If you want your session wallpaper to be used, there's a one click button for that, "set the same background as the current desktop background"


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Press Ctrl+alt+F1 then login in to tty1 stop lightdmas sudo stop lightdm You can fall back to by sudo service lightdm start


0

I experienced the same issue with 14.04 and encrypted home folder. Solution You should use the last tab of Fingerprint UI ("Password") to store your encrypted password on a removable device. You'll need to insert the removable USB stick for every first login after reboot or shutdown. Then, as long as you have active user session you can use just the ...


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Assumptions: Installing from usb 2.0 port and running on an ATI graphics card. For Bios i had iommu enabled and usb legacy support on Possible Bios factors to consider: iommu, usb legacy settings and keyboard mouse port emulation settings? Power on the computer and spam the key needed to access the boot menu which in my case is F12 and select the boot ...


1

First of all I thank the members Takkat and David Foerster for the help. :) The solution I've found: If you have problem like this post, one solution is get the consolekit and insert the following code in your bash script to shutdown the system: /usr/bin/dbus-send --system --print-reply --dest="org.freedesktop.ConsoleKit" ...


1

The syntax for shutdown from command line is sudo shutdown -P now ## for system POWEROFF sudo shutdown -h now ## for system HALT or POWEROFF If that did not work we can also perform a forced poweroff sudo poweroff --force In case we start the script from a user session (as was the case in a custom session) we can either allow users to shutdown without ...


0

I had same issue, but i noticed that after running sudo apt-get remove nvidia-* command, which did not changed anything (even after reboot) there were some old unnecessary packages, and after removing them with command sudo apt-get autoremove and rebooting all was correct, desktop is loading as expected.


0

This worked for my computer (Ubuntu 14.10) Run it when you change the nitrogen background. Note: Do NOT run this code as root; it will ask for root when nessarary! #! /bin/bash # backgroundsync.sh -- Sync background between nitrogen and lightdm IMAGE=`cat ~/.config/nitrogen/* | grep "file" | cut -d "=" -f2 | head -n 1` sudo xhost +SI:localuser:lightdm ...


0

Disable the NVidia card in the BIOS or if you have a PC: remove the NVidia card. Then repeat Ubuntu Desktop does not load again...


0

Same for me, except that it is blackbox for me instead of xfce. I checked the lightdm log files and I have no clue where it still thinks to start up blackbox instead of kodi as everything looks correctly set. What I did was at the end a dirty hack. I symlinked /usr/share/xsessions/blackbox.desktop to /usr/share/xsessions/kodi.desktop Kodi starts up ...


7

Since your initial setup is a minimal installation, I'll take Ubuntu 14.04.1 Server as the base OS. After installation, all that you get is a command-line prompt without lightdm nor a desktop environment. Open a user session and type the following commands: sudo apt-get update sudo apt-get install lightdm-webkit-greeter --no-install-recommends sudo ...


1

Try switching into CLI by pushing ctrl + alt + f1 and see if you can log in that way. From there try switching back to the GUI using startx or lightdm start


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You could create a script to run at startup that uses your quickest workaround, I.E. unity --reset sudo service lightdm restart This shouldn't have any negative consequences if the external isn't connected and should resolve the problem if it is.... Source: Question


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As per request in the comments, here are what I think are the relevant steps to solving the issue: Since Ctrl-Alt-F1 is the only thing that works, do that. You might be able to open a terminal via a shortcut or something, but I recommend doing all fixing there. 1) Try restarting gnome shell with gnome-shell -r 2) if gnome-shell is not installed, ...


0

The short answer: maybe, depending on your BIOS and use-case The long answer: The NVidia card doesn't expose its temperature sensor through hardware to the BIOS, therefore the BIOS is taking the safest bet and assumes it's working at 100% and thus cools at 100%. It's only the driver that exposes the hardware sensor through software to the machine and ...


1

It's exactly the same process, except you use a JPG file. LightDM has no problems displaying JPGs.


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You can change the default greeter by changing the configuration file under the [SeatDefaults] section, to state: /etc/lightdm/lightdm.conf [SeatDefaults] ... greeter-session=lightdm-yourgreeter-greeter Enabling lightdm Make sure to enable lightdm.service using systemctl so lightDM will be started at boot. Command line tool Lightdm offers a command ...



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