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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0
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2answers
116 views

Display wakes up unexpectedly without activity on Ubuntu 12.04

When I use lock screen with ubuntu 12.04, all applications are hidden and a simple window asks me to enter my password to unlock the screen. After a while of inactivity, the screen goes black. ...
6
votes
0answers
829 views

Set wallpaper in the Lock Screen [duplicate]

Is there an app or some way to set the desktop wallpaper as viewable when only logged in, and to set another when logged out or locked? I've tried Ubuntu Tweak, but it only does the login wallpaper, ...
1
vote
0answers
33 views

System locks up at login after latest update on 12.04 [duplicate]

Possible Duplicate: I can't boot into a usable system after updates. What should I do? For starters, I am a noob when it comes to Ubuntu and Linux but I am hopeful that I have the light ...
1
vote
2answers
801 views

Why is the gnome 3 lock screen not displaying?

I installed gnome 3 recently and was expecting the new lock screen, but when I lock the screen I'm displayed with the 'old' version: How do I get the lock screen to appear like the one displayed ...
37
votes
7answers
14k 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 ?
0
votes
0answers
34 views

12.04 lock screen wont change to my wallpaper [duplicate]

Possible Duplicate: Why does LightDM only show a custom wallpaper on the login screen if I have selected one of the default wallpapers? I did a fresh installation of Ubuntu 12.04.1, ...
1
vote
0answers
221 views

Only see wallpaper when resuming from lock and closed lid [closed]

Running Ubuntu 12.04 Unity with kernel 3.4.0-030400-generic on a laptop, when I lock with ctrl + alt + L and close the lid, then open the lid, I expect to see a prompt asking for password, but instead ...
0
votes
1answer
74 views

Computer will no longer load 12.04

My computer ASUS M5A99X Motherboard, 8GB RAM, Seagate hard drive, ASUS GeForce video card. I had 12.04 LTS 64bit loaded. Now when I boot, it will go to the Grub screen, and then reboot, return to ...
4
votes
5answers
5k views

How to get lock screen option in Lubuntu?

I am using Ubuntu 12.04 with many DE. Lubuntu is one of them. I don't have any option to lock screen in Lubuntu while I do in Unity and other DE. Is there any program / application that I can ...
0
votes
0answers
19 views

How to get rid of virtual keyboard when display is locked? [duplicate]

Possible Duplicate: How do I disable the on-screen keyboard in the unlock screen? When my screen gets locked after 10min and I sign in again, I have a virtual keyboard on my screen since a ...
4
votes
1answer
1k views

How can I lock the keyboard and mouse when playing video

I'd like to set up my Ubuntu 12.04 laptop so that I can play a video on loop while my computer is unattended, while not allowing anyone to take over without a password. I think this could go one of ...
3
votes
1answer
658 views

How to automatically lock my computer after logged in via auto login

i have setup my ubuntu 12.04 LTS (unity) to auto login after the computer is turned on after a power outage. so that the web server installed keeps running. but also i have to lock the computer right ...
2
votes
1answer
215 views

Audio and Lock-Screen Hotkeys broken

Some days ago (probably after some package updates) some of my hotkeys stopped working. It is no longer possible to change the volume via the Volume up / Volume down hotkeys on my keyboard and neither ...
4
votes
1answer
7k views

How to configure idle period for auto locking screen

I just installed a fresh Ubuntu 12.04 (Precise Pangolin). I noticed that, there is no screensaver settings, which is fine. I like to control the period of time after which the blank screen is ...
0
votes
0answers
42 views

How can I make lock screen be like the login screen? [duplicate]

Possible Duplicate: How to make the lock screen look like the login screen? Is it possible to have the login screen displayed when locked instead of that ugly and horrible current lock ...
4
votes
1answer
3k views

How can I change power options to make my system “always on”?

Power options in 12.04 system settings has only one option: "Suspend when inactive", while I can't see any obvious settings I can change so that the system is always on - without locking the screen ...
7
votes
1answer
1k views

How to move the lock window on the lock-screen?

Is it possible to move the window where you input your password on the lock screen away from the center, e.g. at the lower edge?
9
votes
0answers
9k views

How do I stop the screensaver from turning on when watching videos online? [duplicate]

My screenlock is set to five minutes. So while playing YouTube videos after five minutes the screen locks even though the video is playing. Any solutions?
4
votes
3answers
23k views

How do I change the length of time the lock screen appears for?

When my screen is locked and I then reawaken it, by moving the mouse or pressing the keyboard, the password entry screen appears. How can I change the amount of time that is taken before the password ...
1
vote
1answer
282 views

How to prevent radiotray from playing (from buffer) on lock screen after resuming

When I resume my laptop and had radiotray turned on it starts playing again (from buffer) while I'm on the lock screen. This gets really annoying when I'm somewhere it should be quiet (library, train ...
5
votes
2answers
5k 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
351 views

Why do some shortcuts no longer work when using an alternate keyboard layout?

I have recently switched to the Colemak keyboard layout and the Ctrl+Alt+L key combination no longer locks the screen. I have checked the keyboard shortcuts menu and it is still set correctly. I ...
2
votes
2answers
594 views

What is the package name of the lock screen?

After reading a review of the Ubuntu Developer Summit which said that one of the proposed changes in 12.10 would be to use LightDM as the lock screen: LightDM will be implemented as the ...
0
votes
2answers
737 views

Kubuntu won't lock

When I close the screen of my netbook in Kubuntu, it doesn't lock when I reopen, and when I press the lock button, nothing happens. I have KScreenSaver configured, and all the drivers work fine, so ...
0
votes
2answers
463 views

CPU working hard while sleeping after upgrading to 12.04

I just upgraded to 12.04. I noticed a new weird behavior that did not happen on 11.10. When I lock the screen, or when it sleeps automatically after the computer is idle, the CPU fan starts working ...
6
votes
2answers
2k views

Lock Screen Blank

I have recently upgraded to ubuntu 12.04. I have been having some trouble with lock screen lately. While the system is locked, I sometimes get blank screen without the lock screen. So I am unable to ...
1
vote
0answers
191 views

control usage for users [closed]

Can any one suggest means to control usage for users (maybe using crontab) to do the same in 12.04 unity? in 10.10 i was keeping control of usage for my children using timekeeper. thanks
9
votes
5answers
14k views

Ubuntu 12.04 LTS often get a black screen with mouse cursor when trying to resume from lock screen. [closed]

Updated from 11.10 to 12.04 after fresh install, often the lock screen will give me a black screen with a mouse cursor instead of the usual. This occurs most often while the Ubuntu software center is ...
6
votes
2answers
3k views

When my screen is locked, will running processes/internet connection be halted?

Sometimes I leave my PC doing other stuff while running an upgrade or downloading big files, Syncing my Dropbox, or something like that. After 10mins or so, my screen is locked (which I like). I just ...
3
votes
2answers
10k 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 ...
2
votes
2answers
6k views

How to make Ubuntu not to lock the screen while running VMware in fullscreen?

I am running Windows XP inside VMware Player. I have two monitors and I keep VMware in fullscreen on the second monitor. The problem is that if I work long enough in inside Windows XP, Ubuntu locks ...
2
votes
2answers
2k views

Lock screen - password incorrect

I have upgraded ubuntu to 12.04 and now there is a problem in logging in after lock screen: it says the password is incorrect even though I provide the valid password. I found a temporary solution by ...
11
votes
2answers
2k views

Key short cut `Super+L` (i.e. `Win+L`) not working for `LockScreen` in 12.04 LTS

I want to change Key short cut to Super+L for LockScreen but it is not working. If I try any other combination like CTRL+ALT+L or CTRL+ALT+G , it works. Win+L combination used to work in 11.10.
15
votes
2answers
33k views

Keyboard shortcut for Lockscreen not working

I tried the combination CTRL+ALT+L or L but it is not working. But if I select the menu item LockScreen from setting drop down it works. Any thoughts on how to fix keyboard shortcut? Thanks.
11
votes
3answers
1k views

How to allow key functions while desktop locked

Is it possible to allow a keyboard's volume keys to continue working when your desktop is locked? Currently, the default behavior disables all special-function keys until the desktop's unlocked. I ...
3
votes
2answers
1k views

Will there be a new lock screen for 12.04?

I have read in many blogs that old lock screen is replaced by new lock screen in Ubuntu 12.04 But when I installed 12.04 Beta 2 (and updated my system) , its still showing old lock screen. Any idea ...
3
votes
0answers
945 views

How can I make the LightDM lock screen my gnome-shell lock screen in 12.04 [closed]

In Unity, LightDM is the default lock screen. Is it possible to make LightDM my default lock screen in gnome-shell ?
0
votes
1answer
2k views

Where are screen lock configuration settings located?

Could you please point me to the place where Ubuntu 11.10 keeps its screen lock settings? Using Unity 3D. Screen lock does not work. Thanks in advance!
1
vote
1answer
348 views

Screen does not lock when locking is enabled

When I installed Ubuntu 11.10, I had a single monitor attached to it. The screen was locking perfectly fine. Since then I connected two monitors to the system and replaced video card to another ...
0
votes
1answer
318 views

Switching to a new user after session is locked [duplicate]

Possible Duplicate: There's an issue with an Alpha/Beta Release of Ubuntu, what should I do? I am running 12.04 with two users and am hoping I am just over looking something. When one ...
0
votes
4answers
436 views

Screen turns black but doesn't lock when I press Ctrl+Alt+L

I am unable to lock my desktop in Ubuntu 11.10 with Ctrl + Alt + L If I press the above key sequence the screen turns black and the little lock icon appears at the top right of my screen. However, ...
1
vote
1answer
156 views

Ubuntu 10.04 Lucid: Is there a way to disable the “Leave Message” button in the lock screen page?

Is there a way to disable the "Leave Message" button feature in the lock screen? I'd appreciate any tips and/or updates to change this to an optional feature. Thank you! Scott
0
votes
1answer
1k views

Couldn't execute command: gnome-screensaver-command --lock Verify that this is a valid command

I'm using Ubuntu 11.10 and a very novice user. From today, I'm suddenly experiencing this problem. If I press Ctrl+Alt+L to lock the PC, I find the following error message Couldn't execute ...
18
votes
0answers
6k views

How do I turn off the onscreen keyboard on the lock screen? [duplicate]

The lock screen has an on screen keyboard that I am unable to disable. I don't remember exactly but I believe I turned it on using the "Screen Keyboard" setting in the Universal Access settings. I've ...
1
vote
1answer
217 views

How do I prevent the Sleep button from locking the screen

My keyboard has a Sleep button. I defined a shortcut in System Settings, Keyboard > Shortcuts > own settings (or similar), so that the Sleep buttons runs a script. That works. But since my upgrade to ...
1
vote
1answer
938 views

screen flickers after waking from blank screen

Every time I lock my screen and then unlock it again I get a really annoying screen flicker that stays until the next reboot. It's not like a graphic glitch it's like the screen is refreshing at a ...
3
votes
0answers
476 views

Switch off laptop backlight when locking screen [duplicate]

Possible Duplicate: How can I disable backlight when I lock the screen? I'm using an IBM Thinkpad t61 and wish to have the backlight switched off when locking the screen.I've been told to ...
3
votes
2answers
207 views

How to add current time to the unlock screen?

I frequently have to unlock my computer just to see what time is it right now. Since time isn't security-sensitive, how can I add it to be displayed on the unlock screen? This is using Unity, ...
3
votes
1answer
87 views

Which application is responsible for accepting passwords when entered in diffrent keyboard layout?

I just noticed that when I'm prompted to enter my password to unlock the system, no matter what layout I choose (Persian or English) as long as I press same buttons that resembles my password in US ...
2
votes
0answers
38 views

Screen not locked after switching users with xscreensaver installed [duplicate]

Possible Duplicate: Lock screen when XScreenSaver was installed I wanted some screensaver in addition to the default screen blanking. I installed xscreensaver from the SoftwareCenter & ...