In the Debian 10 "Buster" with the LXQT desktop, when you start the user's session, a warning occurs from LXQT-Panel that it is impossible to register a combination of the key " Ctrl+alt+d ".

The reason for the problem is the conflict between the programs "Global combinations of the keys" and the window manager openbox for the combination of the keys " ctrl+alt+d ".

The methods of solving this problem proposed on the Internet are either destructive for the operating system (full Disconnect программы Глобальные сочетания клавиш) или сложны для большинства пользователей (editing файла rc.xml менеджера окон OpenBox). Предлагаемый мной способ лишен данных недостатков и подходит для пользователей любого уровня подготовки.

Solution:

1. Press "Start" - "parameters" - "LXQT settings" - "system settings LXQT" .
   

2. Open the window point "LXQT Settings" - "Clovis Combinations" .
   

3. Assign the action " show the desktop " Combination "Shift + Control + D" .
   For this:
   Scroll down down to the item " show the desktop "
   Twice click on the line "Show the desktop" or select this item and click on the " Change " button.
   Click the mouse in the form " Combination of the keys " (the countdown of time will begin)
   Press the key Shift+Control+D (the countdown will stop and the new key combination will be added to the field)
   *Confirm the changes: "OK", "Close" .
   

This method of solving the problem is also convenient because it works with remote computer management. For example, using RDP or VNC. At the same time, the action of "Shift + Control + D" "Turn all the windows and show the desktop" works on a remote computer, and when you press "Alt + Control + D" , the desktop of the local computer is shown.

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