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[greeter]
#activate-numlock=true
#default-wallpaper=/usr/share/backgrounds/164.jpg
#high-contrast=false
#onscreen-keyboard=false
#screensaver-timeout=60

I modified the panthon-greeter.config but still my lock screen wallpaper is the same and why does it say default wallpaper and doesn't differentiate between lock screen and background wallpaper. How can i keep them separate ?? I am using Loki

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Are you sure that "164.jpg" is exist in /usr/share/backgrounds?

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  • Yes, I rechecked and confirmed that it exists – Vipul Mar 2 '18 at 4:04
  • I have another question, when I checked the default-background link points to a different image than the one I have as my current background. What does the default signify. How is the wallpaper changed and stored when changed via GUI – Vipul Mar 2 '18 at 4:09
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How can i keep them separate ?

Quite simple, but not as intuitive unfortunately.

All images used as wallpaper from /usr/share/backgrounds will be applied by LOKI to both Desktop and Login (permissions matter too!)

To keep them separate, use an image from /usr/share/backgrounds as your login BG with greeter config line (must be unhashed!):

default-wallpaper=/usr/share/backgrounds/YOURCHOSENBG.jpg

And to set different wall for the destop only, choose an image from any other location in the system, and use right clik->set as wallpaper - that should keep them separate. Tested it on JUNO Beta2 and it works.

Setting desktop wallpaper this way copies your chosen image to /home/YOURUSER/.local/share/backgrounds/ and imports it to Settings->Desktop->Wallpaper. This unfortunate way, its up to you to remember which image is from here...

/usr/share/backgrounds (applies to both Desktop and Login)

or here...

/home/YOURUSER/.local/share/backgrounds/ (applies to Desktop only)

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Sorry for this, but I had to. A lot of people are looking for the solution.

How to change the grey background on lock screen in Elementary OS - two videos which explain the below method

Full solution below:

Tested on Hera 5.1

Downloaded this: https://github.com/elementary/greeter/archive/master.zip

from https://github.com/elementary/greeter/

Extracted the zip to /tmp

I opened terminal, sudo -i, typed root password. Then run gimp as root (just type gimp in terminal), saved jpg file as png in greeter-master/data folder (replaced previous texture.png file).

Edited the SystemBackground.vala file located in /tmp/greeter-master/compositor/

sudo vi /tmp/greeter-master/compositor/SystemBackground.vala

Changed path from: var texture_file = GLib.File.new_for_uri ("resource:///io/elementary/desktop/gala/texture.png");

to: var texture_file = GLib.File.new_for_uri ("resource:///io/elementary/greeter/texture.png"); Installed all dependencies listed here:

https://github.com/elementary/greeter/blob/master/README.md

gnome-settings-daemon >= 3.27 how to check version in terminal: sudo gnome-control-center --version

Very important:

#

Installed dependencies:

sudo apt install -y libaccountsservice-dev libgdk-pixbuf2.0-dev libgranite-dev libgtk-3-dev liblightdm-gobject-1-dev libwingpanel-2.0-dev libx11-dev meson valac libmutter-2-0 libmutter-2-dev

#

Compiled as root

cd /tmp/greeter-master

meson build --prefix=/usr

cd build

ninja

ninja install

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