The logon window is displayed automatically after the account exits.

The logon window will pop up automatically after the account exits-Linux general technology-Linux technology and application information. The following is a detailed description. I would like to ask you about what you accidentally clicked on the Linux Desktop at the beginning, and then you will not be able to see all the opened windows when minimized. You cannot see either Panel or Panel, you cannot see the Logout icon. You can only turn off X-windows. When you log on again, a Panel is selected in multiple windows. You can select desktop, Top, and bottom, which is different from the previous Panel. After the account logout, another problem occurs. When you exit, the Linux logon session window will pop up automatically. I chose Disconnect and it will pop up again. How can we solve these two problems? Thank you!