Currently I want to change the lock screen picture. I cannot set it to another picture that I want. The current pictures are the ones I set up when I first installed Ubuntu.

I can change wallpaper as usual, using right-click and Set as Wallpaper. But I don't want to set it as wallpaper but as Lock Screen. How do I change the picture that I've set?

  • 1
    On which version of Ubuntu are you ? Which is your desktop environment ? Gnome, Unity, other ? – Zolano Aug 8 '18 at 9:52
  • You didn't give your version of Ubuntu as already asked, so I'll assume it's the latest & default. Check out the documentation page help.ubuntu.com/stable/ubuntu-help/look-background.html.en (it will change workspace background & lock screen background) – guiverc Aug 8 '18 at 10:39
  • I've check the link and already follow the steps. But as I said, it didn't change to Lock Screen but it change the Wallpaper instead. – Fifa Rosidi Sep 7 '18 at 3:24

Ubuntu 18.04 with Gnome Desktop

please note: this is copied straight from Ubuntu documentation, it's worth a look :)

You can change the image used for your backgrounds or set it to be a solid color.

  1. Open the Activities overview and start typing Background.

  2. Click on Background to open the panel.

  3. Select the Background or Lock Screen.

  4. There are three choices displayed on top:

Select Wallpapers to use one of the many professional background images that ship with GNOME. Some wallpapers change throughout the day. These wallpapers have a small clock icon in the bottom-right corner.

Select Pictures to use one of your own photos from your Pictures folder. Most photo management applications store photos there. If you would like to use an image that is not in your Pictures folder, either use Files by right-clicking on the image file and selecting Set as Wallpaper, or Image Viewer by opening the image file, clicking the menu button in the titlebar and selecting Set as Wallpaper.

  1. Select Colors to just use a flat color.

  2. The settings are applied immediately.

When done, switch to an empty workspace to view your entire desktop.

| improve this answer | |
  • 2
    You could have a heading Ubuntu 18.04 with Gnome Desktop... – WinEunuuchs2Unix Aug 8 '18 at 11:01
  • I don't know why I cannot see all pics in the Pictures folder, only parts of them. – Ives Jan 5 '19 at 1:40

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