Comment 27 for bug 1188569

unity-settings-daemon 15.04.1+19.04.20190209-0ubuntu2 built for Ubuntu-18.04 bionic works for me. Please, backport changes to the LTS version.

I have faced a problem with non-working keyboard language switcher in unity desktop. It works till next screen lock. An irritating workaround is to set shortcut again in system settings → Keyboard → Shortcuts → Typing → Switch to next source.

The trivial patch I have had to apply is removing gnome-settings-daemon-common dependency.

--- unity-settings-daemon-15.04.1+19.04.20190209.orig/debian/control 2019-03-13 04:44:44.000000000 +0000
+++ unity-settings-daemon-15.04.1+19.04.20190209/debian/control 2019-03-13 03:56:15.778916801 +0000
@@ -58,7 +58,6 @@
          accountsservice (>= 0.6.34),
          gsettings-desktop-schemas (>= 3.15.4),
          nautilus-data (>= 2.91.3-1),
- gnome-settings-daemon-common (>= 3.16),
          gsettings-ubuntu-schemas (>= 0.0.7+17.10.20170922),
 Recommends: ibus (>= 1.5.0),
             pulseaudio,