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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1answer
14 views

Lockscreen access denied (AD auth via sssd)

On xenial, the lock screen doesn't work for me. Whether I enter the correct password or not, it won't let me in. However, if I click on the menu at the top right corner of the screen and choose ...
0
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0answers
24 views

How can I get rid of the second lock-screen in Ubuntu 16.04?

Since my upgrade to 16.04 I am presented with a second lock-screen which I would like to get rid of. The steps to reproduce are as follows: Close the lid of my laptop Laptop turns into standby Open ...
0
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0answers
26 views

Screen re activated imidiatlly after idle

After upgrading to Ubuntu Gnome 16.04 LTS, the screen power saver started to malfunction. When the desktop is idle, it turn off the screen as usual, but a second later it turns the screen back on. ...
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0answers
26 views

change the Ubuntu MATE lock screen theme

I would like to change the theme of my Ubuntu MATE lock screen (by lock screen I mean when you lock the account and then move the mouse to shut off the screen saver there is a window that comes up to ...
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0answers
24 views

Lockscreen Gone

Currently I am running Ubuntu 15.10 Wily with the Gnome 3 desktop environment. Every time that I set a background for my lock screen it disappears on reboot. I am using the same folder for my ...
0
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0answers
18 views

How to set which programs can override screen off/lock?

First, I do not want to disable completly screensaver/lock like asked here How do I disable the screensaver/lock?. I want to disable it just when certain program is running and is not minimized (the ...
0
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0answers
19 views

How to trigger lock-screen on visiting a website?

The website in question is my Google Drive. I have many confidential data in my Google Drive. And my google account is signed in on my laptop. Also I tend to leave it unattended at times. I want to ...
0
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0answers
7 views

Replacing Xubuntu locker

I want Xubuntu to use slock instead of all of it's other lockers. Its simplicity makes it better looking, more secure and lighter to run. I replaced the xflock4 in \usr\bin with a copy of slock ...
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0answers
16 views

Ubuntu Touch - Screen locking fade issue

On my Ubuntu phone, I have set my screen lock to come on after a minute of none use. This is in the Settings > Security & Privacy > Locking & Unlocking. The lock does come on as requested ...
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0answers
18 views

GNOME Lock screen showing ordinary top bar

I am currently using Gnome 3.18 via the PPA on Ubuntu GNOME 15.10 (Wily). Whenever I lock the screen, I still have the activities button and my gnome shell extensions showing. My GTK theme also is ...
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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?
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0answers
7 views

Ubuntu 12.04 Empty Password Window After Resuming From Locking the Screen

I sometimes have an issue when trying to resume after locking my screen in Ubuntu 12.04. I have a dual monitor setup. I am using ATI/AMD proprietary FGLRX graphics driver. When I lock the computer ...
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votes
6answers
21k 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 ...
1
vote
1answer
22 views

Display doesnt startup after lock

Whenever I'm not using the laptop I turn the screen off using the Fn+F2 button which eventually reduces the screen brightness to 0. By default the lock screen should start in 10 minutes, after 10 ...
0
votes
1answer
32 views

Keep running an app in lock screen

I am new at Ubuntu, and I have an app running with tomcat, to broadcast images. I need this app keep running even if I lock th system (ctrl+alt+l). Is there any way to do it? Ubuntu 14.04 LTS
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votes
3answers
3k views

Why did my lock screen change?

My lock screen changed one day from the default: to this different one: I am running Ubuntu 14.10. The install was originally a 14.04 that I upgraded to 14.10. The lock screen did not change at ...
4
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0answers
43 views

Is the lock screen secure?

I have a fully encrypted drive so I know when my laptop is turned off that nobody can access my data but what about when the screen is locked with my root password? It is often impractical to turn ...
0
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2answers
58 views

Locked out, but correct password

I started up this morning, only to find my password is not working and I am locked out. When I enter the correct password, or when I try to login as a guest, the screen resets and goes back to the ...
16
votes
4answers
8k 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), ...
6
votes
1answer
5k views

How to change lock screen shortcut for Ubuntu 12.10?

Right now, Ctrl + Alt + L locks the screen but I want to make it Super + L as the shortcut, how can I do it ?
5
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3answers
8k 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?
2
votes
1answer
4k views

How to disable xscreensaver lock on suspend?

I have recently installed Ubuntu 12.04 LTS and have installed xscreensaver. As I am the only user on this computer and I am only using the computer for music, movies, and some web browsing I have no ...
1
vote
1answer
69 views

Issues using x11vnc when xfce's lock screen is active

I am on xubuntu 14.04.04, and have successfully managed to get a VNC server up and running with SSH tunneling and such. However, I'm experiencing an issue with the VNC server, x11vnc 0.9.13. ...
0
votes
1answer
149 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 ...
0
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0answers
20 views

Firefox plugin pauses after switching user account 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 ...
0
votes
1answer
36 views

The brightness of the screen is set to 0% automatically

After leaving my laptop for a long time, it locks automatically. But when I'm back, the brightness of the screen is set to 0% automatically, which makes me feel so inconvenient. My laptop is Dell ...
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0answers
35 views

how to prevent auto login after resume from hibernate

pm-hibernate work on my system correctly but after resume lock screen not show and desktop show immediately how can set ubuntu to lock after pm-hibernate and pm-suspend hibernate my os is ubuntu-gnome ...
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0answers
13 views

Only screen lock when on untrusted networks?

I want to pull off something similar to: http://www.xda-developers.com/smart-unlock-trusted-wifi/ Basically when I'm at home connected to my wifi/wired network, I don't want screen lock. When I'm ...
4
votes
4answers
14k 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 ...
0
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0answers
25 views

Unlock causes kernel panic in Xubuntu 15.10

When I lock the screen (by clicking the padlock in the top of the whisker menu), my screen flashes black a couple of times, and then the lock screen is shown, as expected. When I enter my password, ...
5
votes
3answers
631 views

Is there any way to make Ubuntu not to suspend while a download in progress?

Is there any way? How to script in /usr/lib/pm-utils/sleep.d to check ${downspeed eth0}, ${upspeed wlan0}, ${upspeed eth0} and ${downspeed wlan0} and to set the system not to suspend while a ...
1
vote
0answers
35 views

Screen does not turn off after lock screen

Like How to fix: screen saver greys out but does not turn off the screen after update?, but that question contains no valuable information. I am using Ubuntu 15.10, amd64, on an NVIDIA card using ...
0
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0answers
20 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
votes
4answers
28k 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. ...
0
votes
1answer
47 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
33 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 ...
15
votes
3answers
21k 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
3
votes
0answers
158 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 ...
0
votes
1answer
40 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?
1
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0answers
123 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
1answer
58 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
37 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" ...
1
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0answers
66 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
24 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 ...
1
vote
1answer
186 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. ...
3
votes
2answers
7k 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 ...
0
votes
1answer
68 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 ...
3
votes
1answer
72 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
672 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.