I am using
Xephyr as a nested
X server. When I am in
Xephyr window and pres the key combination Control_L+Shift_L,
Xephyr grabs my input (mouse, keyboard). This grab can be released with Control_R+Shift_R, as I have learned here.
The problem is, these key combinations do not work reliably. Sometimes I have to press repeatedly to have any effect. This is very frustrating.
Is there any way to script these key-combinations using some tool such as
xdotool? Or any other tool? I would create a script which I could run once I am trapped inside
Xephyr and cannot leave.
I have tried the following and that does not work (no effect):
xdotool key Control_L+Alt_L+Shift_L