I cannot change my login screen background to the desktop background in my elementary os which is based on ubuntu. I have decrypted my home folder according to this link:http://www.howtogeek.com/116179/how-to-disable-home-folder-encryption-after-installing-ubuntu/and when I ran the command to check for encryption I got the following result-~$ ls -A /homelost+found     ramiz[note: no .ecryptfs folder there!!]~$ sudo blkid | grep swap/dev/sda5: UUID=00ec9e13-4cfe-4f73-905a-fef05d73caa2 TYPE=swapI have come to understand that it means neither my home nor swap partition is encrypted. Still I cannot change my login screen wallpaper. I have tried the simple version given in the official website - i.e.,1) Open Files2) In plank, right click on Files and click Open new window as admin3) Insert your password4) On the new ADMIN window, go to: /usr/share/backgrounds5) Paste your new image file there [/usr/share/backgrounds] (make sure its a JPEG file with, at least, 1920x1080 resolution)6) Go to System Settings, Desktop and your new image file should be there7) Click on it8) Log outThis wasn't helpful so I went for the decryption as I read that it was due to the fact that my home folder is encrypted that I cannot change my login screen background to the wallpaper I downloaded. (I read that here:- http://elementaryos.org/answers/login-screen-isnt-the-wallpaper-i-want-i-also-want-to-delete-all-the-default-wallpapers-1 )Please help me. I have installed elementaryos for a friend of mine recently and she doesn't have this problem. I could change my login screen before(have tried only once!) but cannot anymore. I always thought that the lock icon beside my partition in the gparted app is saying that its encrypted. The lock icon is there.Please help me!!
cannot change my login screen background
login;encryption;elementary os;lightdm;wallpaper
Got it!1) Copy all the pics to /usr/share/backgrounds2) Then take terminal and change directory to that folder.   cd /usr/share/backgrounds3) Then for every image_name.jpg that you just added, type the command:   sudo chmod a+rw image_name.jpg 4) Now exit terminal and check your System settings -> Desktop . Your custom wallpapers will be available there. Selecting from it also changed the login screen background in my lightdm.  