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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14.04 screensaver problem

After upgrading from 12.04 to 14.04, like many others, I had a problem with the lock screen not showing the password field, so I wasn't able to login. The only apparent solution was to reboot the PC. ...
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1answer
53 views

How to stop having to enter password twice to unlock the screen?

Recently when I lock my Ubuntu 14.04 account I have to write my password twice in two different places before getting in. This happened recently. I think I might have installed some stuff that I saw ...
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13 views

Lock screen flickering Acer Aspire E5-511

I got my new Acer Aspire E5-511-P2AV and installed Ubuntu 14.04. When I lock the screen the screen begins to flicker. Every 2-3 seconds the brightness goes up very shortly and then it's black again. ...
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2answers
25 views

Why do I have this start session?

Hi everyone, I have this problem. I install Ubuntu mate in my Ubuntu 14.04 LTS, but don't like it, so i remove it from Ubuntu. The problem is that I have this start up panel and I want the default ...
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15 views

Citrix receiver freeze when is screen is locked

Whenever the screen is locked by the remote session (here Windows) within the citrix receiver (full screen) the local keyboard freezes. The mouse is still working properly, but the keyboard don't ...
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2answers
48 views

Immediately lock screen when I close laptop lid under Gnome 3 (14.04)

How can I configure my Ubuntu 14.04, logging in using Gnome 3, to lock the screen when I close my laptop lid? All Settings ► Power only offers Do nothing or Suspend as options when I close the lid. ...
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11 views

Change current song from lock screen

We have a Sonos box in our office which is connected to my laptop. Music source is Spotify for Ubuntu. Usually I try to skip songs which aren't "office compatible" (like when it's too edgy or so). ...
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66 views

Ubuntu 14.04 no password box after waking up

Opening the lid after suspension - the lock screen shows as normal except the lack of password box. When on dock, the user/password container & unity symbol swap between screens as mouse jumps ...
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2answers
87 views

How to lock screen when mouse is moved to right-bottom corner?

I'd like to lock the screen when I move my mouse to the bottom-right corner. Is there a compiz-configuration for that task? I could not find anything in the compizconfig-settings-manager and system ...
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2answers
142 views

Lubuntu 14.04: how to avoid lock screen on closing laptop lid?

I upgraded my OS from Lubuntu 13.10 to Lubuntu 14.04 a few days ago, and now my screen locks when the lid is closed, while I want nothing to happen when lid is closed. I have already set the right ...
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32 views

Gnome 3.12 logout button gone from menu

Logout entry from gnome menu has disappeared all of a sudden. How can I get it back? I'm using Ubuntu 14.04 64Bit wit Gnome 3.12
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43 views

Ubuntu lock screen login box not showing

Having a little bit of an issue over here. So I'm running Ubuntu 12.04 LTS and up until yesterday I haven't had any real issues. However, when I lock the account I am unable to log back in because the ...
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0answers
33 views

How can i prevent the wifi to auto disconnects when idle

After few minutes when my laptop is idle it's automatically locks the screen and disconnects from the wireless network and then reconnects when I unlock the screen. Is it possible to change this ...
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0answers
58 views

How to turn off/lock screen when using Vino VNC?

I have a laptop(Acer Aspire v3-472g) with a working Vino VNC server on Ubuntu 14.04 LTS 64 bit. My problem is that when I connect with a VNC client, people near my laptop can see what I am doing. I ...
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0answers
73 views

Lock screen does not display all users (ubuntu 14.04)

When I lock my screen using Ctrl+Alt+L, I am not able to see other users listed within the lock screen so I can switch instead. The lock screen shows only my name as an option for login, however I ...
2
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1answer
151 views

How can I get the new 14.04 lock screen back?

For some reason my lock screen changed a while ago from the new one introduced in 14.04 to the one used in older versions. I'm not sure what I may have done to have caused this. How can I get the new ...
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1answer
216 views

How to get Pantheon Greeter on Ubuntu 14.04 instead of Lightdm

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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1answer
60 views

Ubuntu login history?

Multiple users have logged into my 14.04 desktop system. When I want to logout or lock my screen, the drop down menu shows a long list of many of the users who have logged in. I would really like to ...
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0answers
21 views

Lock screen on login

I've some software I connect to remotely and occasionally the computer reboots because of power outage, etc so I have set in my BIOS that after power failure that the computer should reboot. I can ...
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2answers
156 views

Lock screen does not unlock with correct password Gnome and Ubuntu 14.04

I had to reinstall recently. I installed normal Ubuntu 14.04. I then installed gnome/gnome shell/gdm. I then logged in my user to gnome. Since then I have been configuring my system. Yesterday, ...
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0answers
53 views

How can I set a different screen timeout time when on battery than if I am plugged in?

Currently, Ubuntu 14.04 only provides a single option: "Turn screen off when inactive for: x minutes" that applies regardless of whether my laptop is plugged in or not. I want to change this setting ...
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0answers
79 views

How do I get the old lock screen in 14.04?

Is it possible to revert to the old (12.04-13.xx) lock screen from the current Unity lock screen in Ubuntu? If so, how can I do it from the terminal? I have to script this change across 200+ ...
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1answer
65 views

unity - how to detect if the screen is locked?

both of these only work after the screen that was locked gets blanked; but they sometimes fail also, when for any reason the screen doesnt blanks... gnome-screensaver-command --query ...
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2answers
154 views

unlock screen from command line

I was using virtualbox on a laptop and closed the lid which locked the screen and sleep the computer. Now it came back from sleep, the screen is locked, but I can not type my password. The mouse work, ...
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0answers
101 views

Xubuntu 14.04 - Closing lid doesn't immediately trigger xscreensaver

When I close the lid of my laptop, it suspends. When I open the lid and push a key, it wakes as expected. If it has been five minutes (the timer for xscreensaver), the screen will be locked. If it has ...
2
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1answer
91 views

Can I add widgets to the new Unity lock screen in Ubuntu 14.04?

When I lock my screen using Linux Mint 17, there is a giant clock on the lock screen. I got used to this, and now I'm wondering if I can also add a giant clock (or any widget, for that matter) to my ...
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96 views

Disabling the left-aligned lock screen in Ubuntu 14.04

In 14.04, there appear two be two types of lock screens. The left-aligned one, which you also get when you first boot the machine. The centre-aligned one, which you get when you press Ctrl+Alt+L ...
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2answers
823 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 ...
2
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0answers
30 views

Screen locks after a few seconds

Ubuntu 14.04 locks my screen after a few second. I don't always have to log in after this happens. Most of the time I do. It's about every 20-30 seconds that I have to do this. I have tried to change ...
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0answers
16 views

Pressing 'l' key locks the screen in ubuntu while rdp from windows

This annoying issue is only happening when I'm taking remote view of ubuntu12.04 from windows using rdp. Pressing the 'l' key while typing always locks the screen. Also the big 'Enter' key is not ...
2
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0answers
69 views

lock/unlock events for in C++ app which should not depend on screen savers

We have a product, which was developed for Windows. Because of customer request we are developing it for Linux also. So being a beginner to Linux, have migrated most of it (which I loved it). Now got ...
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1answer
159 views

How do I stop the screen from fading out and powering off, on lock-screen?

In the office, when I leave my computer, ie. to fetch some coffee, I press Super+L and activate the lock-screen. This results in the screens fading to black, and subsequently turning off. While this ...
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1answer
163 views

Kde. Set plasma 5.0 lockscreen

I want to set plasma 5.0 lockscreen. http://www.kde.org/announcements/plasma5.0/screenshots/lockscreen.png When I execute $ sudo dpkg-reconfigure kdm I see list with gdm, kdm, lightdm. There is ...
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1answer
47 views

Lock screen automatically in Cinnamon

How can I set computer to turn off my monitor and lock my screen after a minute in Cinnamon. In Unity I can just go to brightness and lock and set it but in Cinnamon I can't see that setting. If I go ...
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0answers
32 views

How to prevent accidental unlocking?

I have a machine at work running tmux and xmonad that I lock with slock. I frequently need to ssh into it from a remote location, and, based on testing this in person, accidentally killing the slock ...
0
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1answer
232 views

How do I configure xscreensaver to use the GNOME lockscreen on Ubuntu 14.04?

I'd like xscreensaver to lock my session using the standard GNOME lockscreen, instead of using the horrible 1990's xscreensaver lockscreen prompt (sorry guys but it needs a facelift). I know this is ...
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1answer
28 views

14.04lts installed on USB stick goes into screen dim

Installed 14.04LTS on a USB stick and system will randomly dim the screen and freeze up for several seconds like it's going into powersave mode. I have tried all of the screen settings including the ...
0
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1answer
192 views

Suspend from the command line and show Unity's lock screen in 14.04?

How can I suspend my computer from the command line and, once it wakes up, display Unity's lock screen? I want to replicate exactly what happens when I click on the system cog icon at the top right of ...
1
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1answer
107 views

Lock screen password misses first character in 14.04

I am running Ubuntu 14.04 (64 bit). In my previous Ubuntu, which was 12.04, when the screen was locked and the monitor went blank, I just typed the password and hit enter. Even though everything ...
2
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1answer
474 views

Gnome Shell Lock Screen problem in Ubuntu 14.04

There is no option for lock Screen. Whenever I switch on from suspend mode, It doesn't show any lock screen.
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1answer
91 views

How do I prevent Xubuntu 14.04 from turning off when listening to music?

i don't want settings turned to never. I also tried the Caffeine app but couldn't even get it to start, and so here I am. Thanks in advance!
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0answers
13 views

Automatically run a command after unlocking screen/wake up? [duplicate]

Is there an easy way to make Ubuntu run a specified command each time I unlock the screen (after an overlay with password prompt dissapears)?
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votes
3answers
498 views

After locking the screen in Ubuntu 14.04, password is not accepted, How can it be fixed?

I'm running Ubuntu 14.04 fully updated on my laptop. Since the last update every time I lock the screen (when leaving my room for example) - when I get back and input my password, it is not accepted ...
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0answers
151 views

Ubuntu 14.04 Failed to get session bus: the connection is closed

my lockscreen was not working, so after reading some solutions here i tried to install sudo apt-get install gnome-screensaver I found it already installed then i tried to run ...
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2answers
89 views

Where do I set the lockscreen image path in Trusty?

I don't want my desktop session wallpaper to be used as lockscreen background. Thank you
2
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0answers
39 views

Increase height of onboard in lock screen

On my tablet I use a fresh install of trusty with gnome flashback compiz session. At login screen gnome provides an own on-screen keyboard which is kind of ok. Within the session I use onboard in ...
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0answers
33 views

Unity session goes to lock on app launch, and won't unlock with password

Has been happening on every Ubuntu machine I've used to date, which is a total of 4. Started in 12.10 as far as I know, but it might have happened with 12.04, 12.10, 13.04, 13.10 and now 14.04. It ...
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1answer
106 views

Trouble Adding Basic Lock Screen in Lubuntu 14

Alright, I'm running the latest version of Lubuntu on my system, Lubuntu 14, and some strange things have been happening when trying to set up a lock screen. Since I use a laptop, all I want to do is ...
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0answers
53 views

Prevent light-locker from setting volume to 100%

I'm on 14.04 with XFCE. When I lock the screen it appears to mute the system volume (or perhaps just mute anything from the locked session?). When I log back in the volume is reset to 100%. This ...
0
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1answer
81 views

swich from ubuntu (unity) lockscreen/login to gnome

I have Ubuntu GNOME installed on my pc and I also installed the unity shell, the problem is I seem to have lost the GNOME login screen and lock screen, is it possible to switch back from the new unity ...