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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13 views

How can I temporarily disable my screen lock settings during video playback?

I use my laptop to watch movies (crazy, I know), sometimes in a browser (Firefox) and sometimes in Totem. Either way, while I'm watching, the screen dims and eventually locks, per my Brightness and ...
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2answers
77 views

When I watch a video online the screen turns off after a few minutes

in some sites when I watch a movie in a browser and I don't touch the computer the screen turns off. In other sites like Youtube I don't have that problem. I tried using caffeine but I don't like the ...
2
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0answers
35 views

Locked computer gets very hot despite no CPU-intensive tasks running

I'm using Ubuntu 15.10 on my HP ProBook 6470b laptop. When I lock it and walk away from my desk it often gets very hot, very quickly. Here's a screenshot of Psensor graph which shows the problem, the ...
2
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1answer
25 views

i3wm screen locking security issue

I am using i3-wm on Ubuntu 16.04. I am locking the screen using dm-tool lock, and it looks good, but I noticed you can circumvent the lock screen by switching a TTY (Ctrl+Alt+F1) and then switching ...
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1answer
53 views

ubuntu 16.04 dconf locks don't seem to work

I looked at dconf and locks and I came up with this script to try to enforce screen locking. It doesn't work. I used to have this working under debian but can't seem to get it to work under ubuntu. ...
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0answers
104 views

Ubuntu 16.04 Brightness & Lock - Screen does not turn off

I have 16.04 LTS on a Dell XPS13 (L321X) and an external LG display connected. I set it up to: -dim the screen -turn screen off when inactive for 10 minutes -lock ON -lock screen as soon as screen ...
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0answers
62 views
+50

Enable [Fn]+[cursor arrows] on lock/login screen to change volume and brightness

Having a new Acer Aspire E17 E5-773G with Ubuntu 16.04 on it, I experience that the keyboard combinations to adjust volume (Fn + ↑/↓) and brightness (Fn + ←/→) do not work on the login screen or lock ...
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0answers
23 views

stop using internet when screen blanks

Related: When my screen is locked, will running processes/internet connection be halted? This is related, but exactly the opposite is desired. I recently installed the (really terrific) Radio Tray, ...
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0answers
17 views

Ubuntu Touch - Tablet screen lock issue

Recently (within the last few day) I have noticed that the lock screen on my Ubuntu tablet is not activating. I have it set to one minute and then lock. Before it was locking all OK and even fading ...
45
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1answer
1k views

How do I stop the constant requests for a password?

I am 70 years old and losing my memory. The only other person here is my wife, who I trust with everything. I have Ubuntu set to automatically log me in when I boot the system. I need to stop the ...
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4answers
170 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 ...
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0answers
51 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 ...
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0answers
50 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
56 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
34 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 ...
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0answers
22 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 ...
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0answers
40 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 ...
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0answers
9 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
24 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
23 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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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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1answer
29 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 ...
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1answer
37 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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2answers
76 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
64 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 ...
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1answer
92 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. ...
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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
38 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
14 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 ...
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0answers
26 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, ...
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0answers
42 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 ...
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0answers
22 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 ...
0
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1answer
52 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 ...
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0answers
35 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 ...
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
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1answer
41 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?
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0answers
125 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
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1answer
65 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 ...
1
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0answers
81 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
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1answer
42 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" ...
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0answers
35 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 ...
0
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1answer
77 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 ...
0
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1answer
35 views

Catching intruder

I work in a company where is better to not forget locking your pc before leaving it, because the first person who finds it's unlocked will use all his strength to embarrass me on social networks and ...
0
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1answer
104 views

Xubuntu lock screen appearing twice

When I leave my machine for an extended period of time, I return to find the screen locked (by light-locker). I can then enter my password, and it is accepted, but then the lock screen is displayed a ...
0
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0answers
23 views

Lubuntu 14.04 screen lock

I have a issue that I researched and still could not not find a solution running Lubuntu 14.04 on laptop. I have automatic login enabled and when I do suspend for the first time, I do not need to log ...
2
votes
1answer
70 views

small font and icons in lockscreen

I've had issues like this since I installed ubuntu on my ASUS ux303LB with Nvidia graphics and 3200x1800 resolution, but after messing around with the scaling in display properties and the font in ...
1
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1answer
26 views

Stop display from fading & consequently shutting monitors off when screen is locked on 14.04

So far I've tried what's shown in the image below, and I also restarted my system afterwards to see if that helped, but still, when I hit WIN-L my screen will lock and slowly start to fade to black, ...
4
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1answer
74 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 ...
2
votes
1answer
63 views

Ubuntu writes the number 5 without beeing pressed

I was looking at the bitcoin charts and when selecting 3 Years firefox stopped working for a short time and when it continued to work it wrote many 5 in the top bar like when you hold the key. Ubuntu ...
7
votes
3answers
222 views

How to lock screen 30 minutes after unlock [duplicate]

I would like my children to only use the computer for 30 minutes, at which time I would like the screen to be locked. At that point, if I choose to unlock the screen again, I would like the screen to ...