Keyboard shortcuts not working

[Kranthi]

Hi,
The following global keyboard shortcuts are not working.
1. All the global keyboard shortcuts for Basket.
2. Play;Pause;Play/Pause actions in Clementine.
3. Function key combinations which are natively supported (because i see the physical icons on the keyboard keys) are not working except fn + esc which is un/muting. My laptop is Toshiba L300 PSLBGG model.
4. Walking through windows (reverse) which is in KWin is not working if the shortcut is something other than Alt + Shift + Tab. I've put Meta+Shift+Tab.
5. Keyboard layout icon in systray is not assigned.
6. Setting the global keyboard settings in the widget settings does not work but setting them in global settings in the system settings works.