I can confirm the same on Xubuntu distribution of Ubuntu 14.04.2. Configured Maximize window to Super+M. It works fine until reboot. After that it doesn't respond until I open xfwm4-settings and re-configure the shortcut again. It works then until the next reboot, and then everything has to be repeated.
$ xfconf-query -c xfce4-keyboard-shortcuts -lv | grep maximize_window_key /xfwm4/custom/<Alt>F10 maximize_window_key /xfwm4/custom/<Super>Up maximize_window_key /xfwm4/default/<Alt>F10 maximize_window_key /xfwm4/default/<Alt>F7 maximize_window_key Note: After a reboot, before I reconfigure Super+M, the Alt-F10 is maximizing my window. After re-configuration Super+M works but Alt-F10 is ignored. Both lines still appear in the output of xfce4-keyboard- shortcuts -- You received this bug notification because you are a member of Xubuntu Developers, which is subscribed to a duplicate bug report (992579). https://bugs.launchpad.net/bugs/1292290 Title: [SRU] Window manager keybindings don't work after reboot To manage notifications about this bug go to: https://bugs.launchpad.net/xfwm4/+bug/1292290/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~xubuntu-dev Post to : xubuntu-dev@lists.launchpad.net Unsubscribe : https://launchpad.net/~xubuntu-dev More help : https://help.launchpad.net/ListHelp