Comment 1 for bug 1419092

There are several issues affecting settings in Ubuntu MATE 15.04 Alpha2, they are all due to a recent change in glib2:

  * https://git.gnome.org/browse/glib/commit/?id=8ff5668a458344da22d30491e3ce726d861b3619

Several of the MATE components have been patched, there are still some more that require a review. But if you enable the following PPA and dist-upgrade you will get the fixes we've already prepared.

    sudo apt-add-repository ppa:ubuntu-mate-dev/vivid-mate
    sudo apt-get update
    sudo apt-get dist-upgrade

Please report back after you've complete the dist-upgraded and rebooted :-)