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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26 views

How to revert to Unity Lockscreen

I installed xubuntu with the terminal command, and it changed my lockscreen. Can I get back to the original one? Thanks. Pictures soon. edit: I apparently can't add a comment, but it looks like the ...
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40 views

Xubuntu 15.04 black screen after screen lock

I am using Xubuntu 15.04 with Xfce 4.12 in a Dell Inspiron 14 laptop, model 3442. Whenever I lock my screen, then put my password and unlock it, the screen brightness gets very low, it's almost as if ...
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13 views

Computer won't lock when I try to lock, but will ask for password in login 14.04 LTS

When I try to lock my computer it just blanks the screen, but won't ask for password to login. I'm not in the nopasswdlogin group, and it will ask for password to login, but I can't just lock my ...
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0answers
11 views

Unity7 and Gnome 3: How to disable “lock was blocked by an application”, so that Gnome3 always locks the screen?

When I have virtualbox in full screen, on Unity it always locks after 5 minutes, but in Gnome3 (and even Unity7) it shows a popup message: lock was blocked by an application. Can I force Unity or ...
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0answers
36 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 ...
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1answer
36 views

Issues Unlocking Computer and Changing Password [closed]

I've been restoring directories and files that I backed up from Ubuntu 14.10 before I had to reinstall the OS (still 14.10), and it appears that I've befuddled some important files on my computer. I ...
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1answer
51 views

Ubuntu 14.04, disable password lock when waking from screensaver for ALL users

I am in the middle of setting up a bunch of lab computers running Ubuntu 14.04 at the local University and would like to disable the need to use a password when exiting screen saver (but not necessary ...
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1answer
52 views

Problem with XFCE lockscreen

I tried a bunch of different desktop environments before settling on Cinnamon. Occasionally, I'll unlock my computer and the XFCE lockscreen shows up. Sometimes it's even on top of my regular ...
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1answer
37 views

Cant log in after lock screen by win+L

i have notebook and additional monitor. Sometimes, not each time(even not each day), i have problem: when i'm leaving my place i'm using win+L to lock screen. When i'm coming back i cant input login ...
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25 views

qBittorent stops downloading when i lock my laptop

this has happened for past 4 days. I was downloading ubuntu 15.04 setup and set qBittorent to shutdown when downloads complete. When i locked it at 11 pm the download was at 11 percent. In the morning ...
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0answers
66 views

How do I disable the automatic fade to black on lock? (15.04)

I have an issue where I lock my desktop, and it will fade to black almost immediately. It does not always resume correctly when "waking up", so I'd like to disable the fading entirely. I have tried ...
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0answers
26 views

Blank password not working on lock screen

I have removed my user account password following this Works fine. But when the laptop goes to lock screen, then Ubuntu is not accepting blank password. It is also not accepting the old password. ...
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1answer
75 views

Unable to lock Ubuntu 15.04?

I have ubuntu 15.04. When I press alt+ctrl+l to lock my ubuntu, a black screen appears with my mouse pointer. When I start to move to pointer the black screen goes and ubuntu desktop appears(as if it ...
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0answers
68 views

i3lock instead of gnome-screensaver

I'm using Ubuntu 14.04 and i3wm. I run gnome-settings-daemon and the power settings works well (when on ac closing the lid does nothing and on battery it suspends) but would want to use i3lock instead ...
2
votes
1answer
69 views

How to Enable password after lock/Suspend

I tried searching for an answer. But everyone is asking for autologin or disable passwd. But i want to put a password which on my laptop is not enabled. I tried to do this in settings but it won't ...
3
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1answer
85 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.
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19 views

what component is responsible for lock screen in unity?

When I close my laptop lid in unity the laptop suspends and the screen is locked properly. I want the same behavior when I am using another wm, is there a process I can start that manages this? I am ...
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0answers
23 views

How can I change which program to use for my lock screen when closing the laptop lid?

When I close my laptop lid, the screen is locked (with gnome-screensaver-command -l, it seems) when I open it again. I would like to change the program that is used for this lock screen to i3lock. ...
4
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1answer
58 views

Two lock screens when unlocking my computer

Probably I installed something, but I don't know what it is... Since then, I have to type my password twice in two different lock screens. If I lock the computer (CTRL-ALT-L), then I have to give the ...
2
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1answer
54 views

screen is not locked after suspend/lid closed

My screen doesn't get locked after I close my laptop lid. The laptop suspends but the screen is not locked. I checked multiple settings: gnome-control-center > brightness & lock > lock on ...
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0answers
95 views

Remove the circle from the lock screen on Ubuntu Touch

Is there any way I can remove the lock screen circle from my Ubuntu phone (even if it's just a temporary console hack that would be reset on the next update)? I have disabled the notifications anyway ...
2
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2answers
48 views

Lock individual application's interface

Can I lock a particular application's interface without locking the whole screen? It would be very useful at work to be able to leave certain applications open when leaving my desk as colleagues often ...
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1answer
63 views

Lock screen appears after login

Suddenly, I'm unable to login to Ubuntu. When I login. I get to this lock screen:- This is copied from google. What I get is a faded version of this prompt. The only thing I did was a visudo to ...
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1answer
63 views

Ubuntu Phone prevent text messages from lock screen

On my Aquaris Ubuntu Phone, text messages quickly pop up on the lock screen. As I consider this a serious security issue, is it possible to hide any messages from the lock screen? Thanks for any ...
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1answer
148 views

Change lock screen background through command line

I'm interested in changing my lock screen background through the command line. I'm hoping to be able to do it such that, after I run a series of commands, the next time it locks that image comes up. ...
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0answers
12 views

Warning messages that flash quickly when locking screen. Where is the log?

Trying to diagnose a problem I'm having with lock screen/suspend dropping all open windows/programs in my session. I noticed that some warning messages flash up when I lock/suspend, but they go by too ...
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2answers
94 views

How to monitor the status of shutdown sequence

This is the script I made to lock and shutdown my system after 30 minutes. #!/bin/bash # Read Password read -s -p "Password: " password echo # shutdown and screensaver Command echo "$password" | sudo ...
3
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1answer
278 views

Blank screen after locking screen

I just updated my Xubuntu 14.10 desktop to 15.04 and I'm having the following issue: When I lock my computer (or when the inactivity timer locks it for me), the screen goes blank and I cannot get ...
2
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0answers
53 views

Set a different password for unlock to my sudo password

I am running a single-user Ubuntu install. When I enter the password to unlock my screen after suspend/timeout, it is the same password I use for sudo - my user password. Is there any way for me to ...
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0answers
23 views

Can xdotool work after my screen becomes locked?

On Ubuntu 14.04, I want to use xdotools to simulate mouses and keys on a firefox window. I want to do that when I am away, so I also like to lock my window. Is it possible for xdotool still to work ...
0
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1answer
57 views

14.04: Unlocking the screen after sleep logs user off and back on

This happened to me just now. I opened my laptop, and got the unlock screen. I entered my password and then it asked me for the password again (it didn't say the password was incorrect, it just asked ...
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votes
3answers
357 views

Computer logs out while I lock screen

Recently, my laptop is behaving strangely sometimes. It doesn't usually does this but lately it frequently does. The problem is that whenever I lock the screen, the computer logs out and closes all ...
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0answers
44 views

System Logs out when unused for some time instead of going into lock screen

I have switched to XFCE4 some days back from Unity, but now i again switched to Unity. From that time onwards I am facing following problem. My system logs out automatically when unused for some ...
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0answers
172 views

Double lock screen when resuming after upgrade to 15.04

After the upgrade to 15.04 I now get a double lock screen when I wake up from resume. First there will be a centered GTK grey panel which looks a bit like the old switch user login, after I enter that ...
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1answer
234 views

Xubuntu 15.04 goes to sleep when the screen is locked

Since I did the upgrade to 15.04 there is a very strange behaviour whenever I lock the screen. Right after the screen is locked and the monitor turns black the computer goes to sleep (or suspend ...
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1answer
118 views

The lock-screen of the Ubuntu BQ

What are colored circles stand for? The large dark one tells the date or rather the number of days that have passed in a month but I can't figure out the colored circles since they vary in size, color ...
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0answers
36 views

System does not ask for Authenticated password

I've recently installed Noobslab themes to customize Ubuntu to Macbuntu. I remember trying to change the password by going to User Accounts. And I remember switching Automatic Login to "ON" and then ...
1
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1answer
139 views

Setting a default input language for lightdm lock screen

My lock screen shows up after a few minutes in which I am not using the computer. This is a wanted behaviour. However, it often switches the input language to Hebrew, or perhaps just taking the last ...
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1answer
460 views

Change lockscreen in MATE?

I want the lightdm-webkit-greeter to be mine lockscreen, do you know how to change it? I found a way how to add Xscreensaver screensavers to mate-screensaver or even change background, but no word on ...
10
votes
1answer
717 views

How do I stop the screen from being locked on resume on Kubuntu/KDE?

Per How do I stop the screen from being locked on suspend? I want to be able to sleep and resume without the screen locking. All the previous answers seem to involve fairly Gnome-specific things that ...
0
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1answer
221 views

Xubuntu 14.04 Change Xfce Login and Lockscreen Button Color

I have Xubuntu 14.04, and I would like to change the login and lock screen button color from blue to green without changing the theme. However, I can't seem to find the proper configuration file to do ...
1
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1answer
185 views

CTRL + ALT + L and CTRL + ALT + DEL are not working in ubuntu 12.04?

I have re installed ubuntu-desktop. After that Ctrl+Alt+L and Ctrl+Alt+Del shortcuts are not working. If I click on the button on the top right side of the desktop (where things like logout, switch ...
0
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1answer
92 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
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2answers
56 views

Screen locks automatically after certain amount of time [duplicate]

The screen locks automatically after 5 minutes when I am watching YouTube on fullscreen. How can I fix this?
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0answers
95 views

X session lost after some idle time with screen locked

When taking a break from working in my laptop (Xubuntu 14.10), I always lock the screen on my pc, keeping many applications running. Usually all is normal, regardless of the idle time I take. However, ...
0
votes
1answer
55 views

Does locking affect running processes?

I would like to run the updates available to my Ubuntu device with the built-in Software Updater application, but I would like to lock my system for the time of the update for security reasons. ...
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3answers
114 views

How can i lock my screen and keep my youtube playlist going?

How can I lock my screen and keep my youtube playlist going?
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0answers
23 views

How can I remove this discoloration from the lightdm-kde-greeter?

I am using Kubuntu 14.04.2 LTS. Recently (not sure since when but it certainly wasn't there at my earliest 14.04 install last year) my locker has started to display some discoloration in some parts. ...
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2answers
388 views

How do you configure the lock screen in Ubuntu Phone?

I just bought the bq Ubuntu Phone. I wondered if it is possible (and how) to configure the lock screen in the Ubuntu Phone, for example which kind of statistics to display or even better how to ...
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1answer
86 views

Change language layout in screen lock

I'm Xubuntu 14.04.2 user. I have two keyboard layouts: Russian and English. Sometimes I closing my laptop and when I'm back and trying continue to work Xubuntu wants me to enter my user password (my ...