Hello,
Since mars 30th, every time my system start, I have no window manager used! I can set the window manager Marco or Compiz by navigate to control center>mate tweak>set a window manager>OK. But after each restart, same problem: no window manager used. If I set Compiz then I restart, same problem. If I set Marco then I restart, same problem. With no window manager used, I can't use my computer! I can't close the windows or switch the windows. I don't understand why. In normal condition, the following command returned:
wmctrl -m
Name: Metacity (Marco)
Class: N/A
PID: N/A
Window manager's "showing the desktop" mode: OFF
But currently, at startup, as no window manager is used, this command returned (see capture bellow).
Please help, how to fix it?