The lock screen lets a user lock the currently-running session behind a password screen. This screen may either be blank or show a screensaver until mouse or keyboard activity is detected.

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7 views

Ubuntu dimming even after brightness dimming disabled

^ I unchecked "Dim screen to save power" and my System 76 Gallago Ultra Pro with Ubuntu 14.04 installed continues to dim after about 30 seconds (less than a minute). It is really annoying while ...
15
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4answers
25k views

Lock Screen not working. 14.04

I recently upgraded to 14.04 and since then my lock screen is not working.I read online that gnome-screensaver is not supported in Trusty and it was suggested that I install xscreensaver instead. The ...
9
votes
3answers
6k views

How to suspend from command line such that screen is locked?

I'm using Xubuntu 12.04. In the Power Manager, I have checked Extended -> Lock screen when going for suspend/hibernate. If I choose to suspend from the main menu / Panel 1, the screen is locked. ...
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1answer
23 views

Ubuntu not asking for password to log in

I am trying to lock my system, but it seems like though it is locking but it is not asking for password to login. Even when I changed setting from Settings > User Account and rebooted my system the ...
0
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0answers
18 views

Screen locking and energy saving does not work when using ethernet connection

I have Kubuntu 15.10 installed on three computers, and on all three computers, I have "Screen Energy Saving" and automatic screen locking enabled in the system settings. On desktop 1, both screen ...
4
votes
4answers
11k views

How do I disable automatic screen locking in Xubuntu?

After about 10 minutes, Xubuntu 14.04 goes to sleep all by itself. I've set up the shuffle on the music player and it only gets through 3 songs before I have to sign in again. There is no screensaver ...
15
votes
3answers
19k views

How to disable screen lock in Ubuntu 14.04 / Unity?

I disabled the lock in the "Brightness & Lock" but I still get the lock screen when is resumes/wake from suspend. Although the option "Require my password when waking from suspend" is unchecked
2
votes
0answers
119 views

Ubuntu Gnome 15.10 - last screen flashes when waking up

I recently upgraded 15.04 to 15.10, and then I started to see my last desktop screen flashes before the lockscreen shows up when I open my laptop. Might not be a big trouble, but I'm little bit ...
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0answers
15 views

Apps pause after switching accounts in Ubuntu 14.04

I am running automatic scripts (Instagram Liker) using iMacros (A Firefox PLugin) on an Ubuntu Machine. I have two accounts on the same computer. One for running my scripts and the other for family ...
1
vote
1answer
18 views

My Ubuntu 15.10 doesn't automatically lock

The setting in brightness and lock seems to do nothing. I think this has bug has been around for a while does anyone know the solution? Or how I might be able to diagnose it myself?
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vote
0answers
117 views

Why does my thinkpad log in automatically if I lock my screen, shut my lid and then reopen it?

I've noticed some strange behaviour while working today. If I lock my screen with ctrl+alt+l it takes me to the login screen. If I then decide to shut my laptop it suspends correctly. But when I ...
5
votes
3answers
7k views

How do I remove the dots from the lockscreen in Ubuntu 14.04?

You can remove the dots from the login screen in 12.04-13.10 using this method. How do you remove the dots from the new lock screen in Ubuntu 14.04?
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1answer
25 views

Desktop entry, or other convinent but safe way to exec multiple statements,

I'm running Gnome on Ubuntu 15.4. I want to execute two or more actions at once, but let's try with two: sudo pm-suspend gnome-screensaver-command -l pm-suspend has been added and allowed to be ...
0
votes
1answer
23 views

Password problems without setting one up

This might be a duplicate, but I didn't find any answer that fixes the problem. I have recently installed ubuntu 14.04 LTS and did not create a password for logging in. Now, if I try to use "sudo" ...
0
votes
0answers
19 views

Lock screen automatically in lightdm

I have a custom install of Ubuntu with lightdm and openbox. I want to automatically lock my screen when it is inactive for a set period of time. I can lock my screen with dm-tool lock But I don't ...
0
votes
0answers
12 views

Customizing Unity lockscreen with modals

Is it possible to add modals to current unity lockscreen? An example of modals in lockscreen can be seen in GNOME's lockscreen * - image taken from OMGUbuntu.co.uk article If not, is there somekind ...
15
votes
2answers
7k views

How can I lock the screen using the new lockscreen from the command line?

Ubuntu 14.04 introduces a new lockscreen that looks similar to the login screen. I am still able to lock the screen using the command gnome-screensaver-command --lock (as I always did before), ...
1
vote
1answer
102 views

Set animated (video or gif) background for Lock Screen in Ubuntu 14.04 LTS

Is it possible to set animated background for the lock screen of Ubuntu 14.04 (or higher)? Wasn't able to find any significant information about setting of video or gif animation for Lock Screen only. ...
2
votes
2answers
6k views

Which command locks screen with lightDM?

I used to lock screen with this command, but it stopped working recently, probably after update. I'm running VERSION="13.10, Saucy Salamander". How can I restore this function? $ gdmflexiserver ...
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votes
0answers
22 views

ubuntu boots to terminal [duplicate]

I was trying to install database software in Ubuntu but something got wrong and when i restarted pc, Ubuntu command line opens where it asks for login which fails saying unable to connect to database ...
0
votes
1answer
40 views

How do I remove all traces that Ubuntu Tweak was ever there? - revised

I have an image hovering in my lock-screen that I can't remove. I think I put it there with Ubuntu-tweak but I have already uninstalled it. Any ideas on how to remove it? I really hope this is the ...
0
votes
3answers
5k views

How to get Pantheon Greeter on Ubuntu 14.04 instead of Unity Greeter

I'm running Ubuntu 14.04, how can I replace the lockscreen with the one on Elementary Luna (Pantheon-Greeter). Thank You!! Edit: Can anyone do it and confirm it works completely?
3
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1answer
63 views

Nexus 4 with Ubuntu touch locked for 24140377 minutes!

My phone has locked itself, the lock screen says: Device Locked You have been locked out due to too many failed passcode attempts. Please wait 24140376 minutes and then try again... I believe ...
4
votes
2answers
476 views

Use of Yubikey Neo for login 2FA and lock screen

I want to use my Yubikey Neo to login to Ubuntu 14.04. In addition, it would be convinient if the screen is locked automatically everytime I unplug the Yubikey.
0
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1answer
30 views

Catching intruder

I work in a company where is better to not forget locking your pc before leaving it, because the first person who finds it's unlocked will use all his strength to embarrass me on social networks and ...
0
votes
1answer
36 views

Xubuntu lock screen appearing twice

When I leave my machine for an extended period of time, I return to find the screen locked (by light-locker). I can then enter my password, and it is accepted, but then the lock screen is displayed a ...
1
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1answer
39 views

small font and icons in lockscreen

I've had issues like this since I installed ubuntu on my ASUS ux303LB with Nvidia graphics and 3200x1800 resolution, but after messing around with the scaling in display properties and the font in ...
0
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0answers
15 views

Lubuntu 14.04 screen lock

I have a issue that I researched and still could not not find a solution running Lubuntu 14.04 on laptop. I have automatic login enabled and when I do suspend for the first time, I do not need to log ...
46
votes
8answers
35k views

How do I lock the screen from a terminal?

I am using Ubuntu 12.04. Is there any way to lock the screen or session from a terminal command or script? are there any changes happen in 13.04 ?
1
vote
1answer
13 views

Stop display from fading & consequently shutting monitors off when screen is locked on 14.04

So far I've tried what's shown in the image below, and I also restarted my system afterwards to see if that helped, but still, when I hit WIN-L my screen will lock and slowly start to fade to black, ...
1
vote
1answer
38 views

Ubuntu writes the number 5 without beeing pressed

I was looking at the bitcoin charts and when selecting 3 Years firefox stopped working for a short time and when it continued to work it wrote many 5 in the top bar like when you hold the key. Ubuntu ...
7
votes
3answers
126 views

How to lock screen 30 minutes after unlock [duplicate]

I would like my children to only use the computer for 30 minutes, at which time I would like the screen to be locked. At that point, if I choose to unlock the screen again, I would like the screen to ...
0
votes
0answers
31 views

Replace Xscreensaver with i3lock

I was wondering if it is possible to replace Xscreensaver with i3lock. Today I am using i3lock which bluring my screen when it's locked but I want to use it as Xscreensaver, is this possible? Here is ...
1
vote
3answers
215 views

Where do I set-up a screen saver in Xubuntu 15.10?

That's strange but I can't find where can I choose a screen saver and configure when will it start. There is no button named anything like "screen saver" in the Settings Manager.
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votes
0answers
20 views

PC won't come back when lid is closed and monitor attached

I am using Xubuntu and regulary lock my screen at work. It is attached to a external monitor (primary display) and the lid is closed. After locking it only comes back when I open the lid and press ...
47
votes
5answers
2k views

A timer that automatically locks the screen to take a break away from the computer?

I'm looking for a graphical or command line program that provides me with the following workflow: Start a 25min session After 25min screen is automatically locked for 5min (or maybe just turned ...
0
votes
0answers
21 views

Why does Xubuntu asks for my password twice when it wakes up from the blank screen?

Every time Xubuntu wakes up from the blank screen it asks for my password and then, after I enter it, it asks for it again. This doesn't happen if I lock the screen manually. How can this be fixed?
7
votes
5answers
18k views

Lubuntu enforces screen lock

I can't disable screen lock in Lubuntu. In Power management I have it unchecked. There is another option "Enable light locker" in the "Light locker settings". I also have this unchecked but I still ...
5
votes
4answers
19k views

Stop Xscreensaver from locking screen once screensaver starts

I have installed Lubuntu 12.04 and was wondering if there was a way to keep it from locking the screen when the screensaver starts? The "lock screen after X minutes" box is unchecked, so that is not ...
0
votes
1answer
27 views

Ubuntu Lockscren Xubuntu 14.04

I installed the ubuntu-desktop, but I still get the Xfce lockscreen. Is there anyway to get the Ubuntu lockscreen instead?
3
votes
1answer
129 views

Unknown xubuntu screen locker / password

I have a regular ubuntu installation which I then installed xubuntu desktop over. I am occasionally confounded though by an unknown "screen locker" that occasionally appears instead of my normal ...
0
votes
0answers
34 views

How do I disable GDM's automatic screen locking *after a virtual terminal (VT) change*? It's too buggy and never works correctly

Every so often either my touchpad stops behaving or some program (Firefox or QEMU) freezes my system and I have to switch to a virtual terminal to fix it (merely switching to a VT and back fixes the ...
0
votes
0answers
70 views

Lock screen with gnome-screensaver-command as root (from /etc/pm/sleep.d script)

My system (Ubuntu 15.10) has a bug: I have enabled "Require my password when waking from suspend" on the "Brightness & Lock" settings panel, but it does NOT ask for my password, which is ...
1
vote
1answer
137 views

Keyboard backlight turns on after lock screen/display on

I've just upgraded Ubuntu (15.04 to 15.10) and now I'm running into a weird behavior: whenever I lock the screen (using any of Ctrl+Alt+L, Win+L or just clicking on "Lock" in the taskbar menu), the ...
0
votes
1answer
67 views

Which program am I using to lock screen?

On Ubuntu 14.04 with XFCE desktop environment, how can I know which program or daemon is locking my screen automatically after a few minutes of inactivity, and when I click "lock screen"? Different ...
2
votes
1answer
53 views

Set message from command line for the Cinnamon Lock screen

I am trying to create a little script to set random message when i lock the screen of my computer. So i need to be able to define a message from command line and call it when i will execute the lock ...
0
votes
0answers
34 views

Gnome Lock screen graphics animation (Arrow)

The arrow on the gnome lock screen is not displaying correctly. Graphics drivers are installed from the additional drivers program. This normally happens after I wake the machine from sleep. It ...
0
votes
0answers
31 views

How to disable non-english keyboard layouts on the log-in and unlock screens?

Although I use 3 different languages and have 3 keyboard layouts installed my password does not include characters that are not present on a standard English keyboard (actually I have never seen a ...
1
vote
2answers
435 views

Xubuntu doesn't lock screen anymore

It was working and one day it decided not to work anymore. I can click on the lock screen button or use Ctrl+Alt+Del but no reaction. How to fix that? I am using Xubuntu 14.04
11
votes
4answers
8k views

How to turn off screen (DPMS) together with locking session in KDE?

First of all, I'm aware a similar question for GNOME is asked here: "Switch off laptop backlight when locking screen". Objective I would like to turn off my screen on locking the session for power ...