I also tried linking in the icons from /usr/share/icons/Human/scalable/status/, including both notification- display-brightness and notification-keyboard-brightness, but nothing seems to work.
Changing the icon theme to Human however does allow brightness notifications to work, just as a sanity check. -- Brightness notification works only with Human Icons https://bugs.launchpad.net/bugs/344385 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs