Better use "dm-tool switch-to-greeter" as replacement for "gdmflexiserver".
http://bazaar.launchpad.net/~ubuntu-branches/ubuntu/vivid/xfce4-panel/vivid/view/head:/debian/patches/02_support-dmtool.patch
Better use "dm-tool switch-to-greeter" as replacement for "gdmflexiserver".
http:// bazaar. launchpad. net/~ubuntu- branches/ ubuntu/ vivid/xfce4- panel/vivid/ view/head: /debian/ patches/ 02_support- dmtool. patch