I have been testing Ubuntu 18.04 LTS recently on my lab machine running Windows 10 with VMware Workstation 14 Pro. The steps below is how I got Ubuntu 18.04 lock screen disabled.
If you step away from your Ubuntu desktop for a short while it will automatically lock the screen to prevent others from accessing your files or programs. This feature is included for security reasons.
You can also manually lock the screen by selecting the system menu at the top right corner and clicking the lock icon on the menu pane. Doing this will lock the screen instantly. To return to your desktop raise the lock screen curtain to reveal the logon screen. Enter your password to logon.
When your screen is locked, other users can log in to their own accounts by clicking Log in as another user on the password screen. You can switch back to your desktop when they are finished.
Ubuntu lock screen is good, however, it can be annoying at times. If you’re not concern about security and which to turn of the lock screen, continue below to learn how to.
To disable Ubuntu lock screen, click the system menu at the top right corner and select Setting.
Then select Privacy on the left menu and show the privacy options. On the privacy pane, select Screen Lock
Clicking the Screen Lock will display the option to disable. Tick the button to OFF to disable as shown below.
Exit and you’re done. You computer will never lock its screen again when it is idled.
Although this is a security feature, it can be annoying at times especially when you’re alone. The lock screen feature prevents unauthorized access. It’s very useful in public settings. But when you’re alone and no one around to access your computer, it’s probably not necessary.
So, in public settings enable the lock screen but when you’re alone and busy between different tasks away from your computer, you should probably disable and make Ubuntu less annoying.
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