There is no way to switch the wallpaper file during a session yet, but you can set it in weston.ini before starting a session.
See the weston.ini man page, SHELL SECTION. man weston.ini from weston.ini: [shell] background-image=file What should be the expected behavior? It's possible to configure the background. Setting invalid, because this is a support request. If you need the ability to configure the background on-the-fly, please reopen and state it explicitly. If you need auto-detecion of the preferred system background file/configuration in Weston, this most likely won't be provided at this point. ** Changed in: weston (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1039751 Title: Does not use the Ubuntu wallpaper To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/weston/+bug/1039751/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs