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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4
votes
2answers
326 views

Unlock gnome-screensaver instead of deactivating

So, I've been trying to create a USB key for my machine. I've used PAM-Usb as described in many places over the internet (for example this one, which is basically copypasted everywhere). I ...
0
votes
2answers
909 views

Can't disable lock-screen in Ubuntu Gnome 15.04 [duplicate]

I've read through many of the questions on AskUbuntu about disabling the lock-screen. Everything I've tried, from setting the lock-screen to "Off" in the Privacy window, to setting the dconf flag: ...
3
votes
2answers
537 views

Gnome 3.14: Is possible to disable the lock screen?

I want to disable the lock screen on Gnome 3.14 after the computer is woken up from suspension. I've tried different proposed solutions, like this one, but they does now work.
1
vote
0answers
55 views

Extending the lock screen time

When ever I lock the screen, immediately the screen goes blank without the lock screen being active for few seconds or minutes at least. Read some questions which arose regarding this, but couldn't ...
0
votes
1answer
36 views

Upon reboot, can GUI applications be started in an X session without ever having the screen unlocked?

I have a home server. Sometimes, I have to reboot it from a distance, or it reboots itself, say after a power failure. I would like that some GUI applications to be started under my user, ...
1
vote
0answers
63 views

Double unlock needed with kde

I installed kde plasma desktop on my Ubuntu 14.04. The problem is that whenever the screen is locked, i have to type my password twice to unlock the session: once in the unity ubuntu and once in the ...
1
vote
0answers
59 views

Lock user screen with custom full screen image and prevent unlock using ssh

I want to connect to a computer using ssh, lock the computer's screen by displaying a full screen custom text/image and prevent user from doing anything until I unlock the screen again using ssh. How ...
1
vote
1answer
298 views

How to automatically lock screen on closing the lid and keep programs running (not sleep) on HP Laptop

I wanted to keep my apps running but get the screen secured when I close the lid. I did not want to get into sleep mode as this blocked my downloads and my running music. Also, I was lazy enough that ...
0
votes
0answers
89 views

Xubuntu 15.04 - screen goes grey when locked

When I click on the padlock icon to lock my screen it goes grey. That's fine - I mean, I don't care what's the color but when I try to unlock the screen to provide my password I don't see the dialog ...
1
vote
0answers
154 views

Is it possible to get notifications on lock screen on ubuntu unity?

As we already know on Gnome lock screen we get notifications such as pidgin chat notifications etc. Same like Gnome, is there any command, configuration or software we need to change to get ...
0
votes
1answer
115 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 ...
2
votes
0answers
594 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 ...
2
votes
1answer
72 views

Smart lock like on Android?

Is it possible to configure either LightDM or GDM to automatically log in when my laptop is connected to a certain WiFi? Or even better, to check my location regardless of what WiFi I use?
1
vote
0answers
137 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 ...
3
votes
1answer
175 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
1answer
420 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 ...
1
vote
1answer
620 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 ...
3
votes
1answer
106 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 ...
1
vote
0answers
216 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 ...
0
votes
1answer
207 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 ...
4
votes
1answer
789 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 ...
4
votes
2answers
971 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.
5
votes
1answer
218 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 ...
3
votes
1answer
255 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 ...
2
votes
2answers
65 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 ...
0
votes
1answer
219 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 ...
1
vote
1answer
116 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 ...
3
votes
2answers
3k 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. ...
2
votes
2answers
217 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 ...
5
votes
1answer
1k 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 ...
9
votes
1answer
243 views

Set a different passwords for unlock and sudo [duplicate]

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 ...
0
votes
1answer
73 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 ...
4
votes
3answers
750 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 ...
2
votes
0answers
50 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 time,...
3
votes
0answers
320 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 ...
1
vote
1answer
326 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 ...
1
vote
1answer
139 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 ...
2
votes
1answer
461 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 ...
2
votes
1answer
2k 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
4k 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
votes
1answer
1k 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 ...
2
votes
1answer
877 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 ...
1
vote
3answers
1k 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
0
votes
2answers
90 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?
1
vote
0answers
178 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, ...
1
vote
1answer
412 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. (...
0
votes
3answers
245 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?
1
vote
2answers
1k 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 ...
4
votes
1answer
310 views

Change language layout in screen lock

I'm Xubuntu 14.04.2 user. I have two keyboard layouts: Russian and English. Sometimes when I close my laptop and then go back and try to continue to work, Xubuntu wants me to enter my user password (...
2
votes
0answers
451 views

Ubuntu 14.04 freezes upon re-activating after lock screen [closed]

Since today my systems seems to freeze whenever I lock it by pressing Ctrl+ALT+L and then try to unlock it. I am using a dual monitor setup I have read AskUbuntu Post to get it working, and upon ...