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Description of problem:
In case of multiple monitors, Alt-Tab (to switch application windows) has no effect on secondary monitors. 
Alt-tab on the primary xscreen 0 works as intended. Alt-tab on xscreen 1 through 3 has no effect.

Using a single X screen across all monitors allows alt-tab to work, but individual X screens per monitor is required for business use.

Version-Release number of selected component (if applicable):
Red Hat Enterprise Linux 7.3
kde-workspace-4.11.19-8.el7.x86_64

How reproducible:
Always

Steps to Reproduce:
1. Login to KDE session on a multi-monitor setup.
2. Open any application on screen 1 and then on screen 2.
3. Try to switch windows by Alt-tab.

Actual results:
Alt-Tab works on screen 0 (primary)
Alt-Tab switch doesn't work on secondary screens.

Expected results:
Alt-Tab switch should work on all screens.

Additional info:

Development Management has reviewed and declined this request. You may appeal this decision by reopening this request.