What you’re trying to do is disable any action by the desktop environment
when you close the laptop lid. It’s usually under the power settings,
wherever your desktop environment keeps those. You should be able to do
this as your normal user so there’s no need to use sudo/root.

On Mon, Oct 5, 2020 at 6:42 PM joe--- via PLUG-discuss <
plug-discuss@lists.phxlinux.org> wrote:

> On my Linux 19 Cinnamon thinkpad, when I lift the lid, it always
> requires a password. How can I eliminate that?
>
> I have tried two proposed solutions that I found from searching,
> but the unwanted password prompt is still there.
>
> (1) Open terminal and type "sudo passwd root". It prompts for
> a password for the root account. I enter the admin password
> then to "Preferences" and "Login Windows" then followed the
> prompts but could not find a way to eliminate the password.
>
> Next, I went here:
> https://forums.linuxmint.com/viewtopic.php?t=71680
>
> And found this: enable auto login so that you don't need a password
> to log in. Go to the Administration menu/Login screen and set up
> an auto login for a user. But again, following all the prompts
> did not give me the desired solution:
>
> System Settings > Administration > Login Window > Users > Automatic
> login >
> Username [joe]
>
> What am I doing wrong?  How can I eliminate this annoying requirement
> to enter a password again every time I shut the lid and open it again?
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