OK, I can confirm that the "non responsiveness" is limited only to the touchpad (on my computer anyway). If I plug in a USB mouse and switch users I can move the mouse cursor with the USB mouse, but not the touchpad.
Which then led me to Bug #60544: [edgy]synaptics touchpad stop work in new session user. My issue is certainly a duplicate of 60544, but perhaps if Albert can test with a USB mouse also, we can mark this as a duplicate (although DavidCowell's bug seems different). -- Switch user not working https://launchpad.net/bugs/34394 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs