Using Remote Desktop (via Citrix) to access a Windows server, and need to press Ctrl-Alt-End to send Ctrl-Alt-Del to change your password?
By default, in Xfce Ctrl-Alt-End is mapped to
/xfwm4/default/<Primary><Alt>End move_window_next_workspace_key
which stops Citrix from sending it.
To undo this mapping, you can go to:
Start / Settings / Settings Editor
Then on the left go to
xfce4-keyboard-shortcuts
Find:
xfwm4 / default / <Primary><Alt>End String move_window_next_workspace_key
And possibly:
xfwm4 / custom / <Primary><Alt>End String move_window_next_workspace_key
Select it and choose Reset
Also see:
https://askubuntu.com/questions/540797/disable-controlaltend
