I am on KUbuntu 15.10, using a slightly modified Version of the programmer dvorak layout. Escape is swapped with CapsLock.

here are my examples (best viewed with monospace fonts):
Action                  |   Keys Pressed and Displayed  |   Actual Keys Performing the Action
Log out                 |   Meta + CapsLock             |   Meta + Escape
Log out                 |   Meta + Escape               |   Meta + CapsLock
Window to Next Screen   |   Meta + Shift + Q            |   Meta + Shift + ; 
Window to Next Screen   |   Meta + :                    |   ??? 

So in order to map something to "Meta + Shift + ;" (';' is where 'q' is on us layout), i have to press "Meta + Shift + q" ('q' is where 'x' is on us).

i am sure more examples could be found...


Reproducible: Always

Steps to Reproduce:
1. Set Programmer Dvorak as your Main Keyboard Layout
2. Open Systemsettings -> Shortcuts -> Global Keyboard Shortcuts
3. Assign (e.g.) KWin -> Window to Next Screen to "Meta + Shift + ;"
4. Assign (e.g.) KWin -> Window to Desktop 1 to "Meta + Shift + q"

Actual Results:  
pressing Meta + Shift + ; moves the Window to Desktop 1

Expected Results:  
pressing Meta + Shift + ; should move the Window to the other Screen