A new package version has been uploaded (4.11.3-1ubuntu1). Does this version fix the resize issue for you?
>From the 4.11.3 changelog: * Multi-monitor fixes: - Release pixmap on screen changes - Always redraw backdrop on display change. Both patches were added so that transitions from one monitor to another cause the backdrop to properly display. ** Changed in: xfdesktop4 (Ubuntu) Status: Confirmed => Fix Committed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1278130 Title: Desktop fails to resize when the resolution is increased To manage notifications about this bug go to: https://bugs.launchpad.net/xfdesktop/+bug/1278130/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs