In Ubuntu, the root user locks the screen (requires a password). according to Lockscreenwhenloggedingnomeenvasroot, the root user cannot lock the screen (requires a password) because of security considerations. the root user also says how to install the screen, but he is talking about compiling and installing... the root user in Ubuntu locks the screen (password required)
According to Lock screen when logged in gnome env as root, the root account cannot Lock the screen (password required) because of security concerns. It also says how to install it, however, he is talking about compilation and installation. I will post the installation process in the Software Center.
Search for "xlock" in the Software Center, install the second one, and try the first one. The effect is not very good.
Www.2cto.com
Enter xlock on the terminal to run the task.
When you return again, the password input page appears:
Enter the password.
Others: xlock: can not find font:-*-helvetica-medium-r-*-24 -*-*-*-*-*-*, using fixed .. but it does not affect the usage. I found that the font cannot be found. After a long time, we realized the win + L function under win. Ah...
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