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2
votes
1answer
8 views

Brightness & Lock missing in System Settings - can't change screen locking time

I am running 14.04.2 LTS. I want to change the time it takes to automatically lock the screen when I step away, but there is no Brightness & Lock option listed under the System Settings. I have ...
0
votes
0answers
7 views

Warning messages that flash quickly when locking screen. Where is the log?

Trying to diagnose a problem I'm having with lock screen/suspend dropping all open windows/programs in my session. I noticed that some warning messages flash up when I lock/suspend, but they go by too ...
1
vote
1answer
18 views

Explanation of visudo lock file

When I edit /etc/sudoers using visudo, I think it saves to sudoers.tmp, checks it for errors, then copies it to the real /etc/sudoers. However, I can't confirm my theory (how the lock file is used) ...
0
votes
1answer
23 views

If someone switches user from my lock screen, can I get back into my session?

Someone accessed my lock screen and switched user while I had some unsaved work in progress. Can I get back to my session? When I try to access it, it just appears as a new session. EDIT: I've just ...
2
votes
0answers
31 views

After closing the lid, no screen display and computer hangs. Have to restart everytime.(14.10)

When I lock my laptop and close the lid, and again after sometime,when I open the lid, their is a blank screen with no display and even if I press any key(s), my system does not wake up.I have to ...
0
votes
0answers
8 views

lock screen user with direct access

I have just installed Ubuntu 14.04 LTS and created an user with direct access ( i.e. no password needed to log-in). But after 5 minutes idle, the screen lock appears and asks for a password to ...
3
votes
0answers
144 views

Ubuntu 14.04 logs me out when I try to lock screen

I'm having a weird problem where every time I try to lock the screen, Ubuntu logs me out instead. And when I log back in after locking, it makes me login twice: First I enter my password with the ...
0
votes
1answer
32 views

Unity and Gnome 3 Lock Screen

I installed Ubuntu Unity 14.10. Recently, I added the Gnome 3 shell so that I can run both. At my login screen, I can choose which one to log in to. I have noticed that when I choose to log in with ...
0
votes
0answers
33 views

Bluetooth is being locked by Windows 8

My Bluetooth was working fine, but after switching to Windows 8 and switching back to Ubuntu again it doesn't seem to work anymore. What can I do to fix this problem?
0
votes
0answers
34 views

System getting hanged after apt-get update

When I run sudo apt-get update system itself getting hanged and need to restart. The output getting is, W: Failed to fetch ...
1
vote
0answers
662 views

sudo useradd: cannot lock /etc/passwd; try again later (no lock files)

When doing this on Ubuntu server 14.04: camilstaps@localhost:~$ sudo useradd --home-dir /var/www/xxx.camilstaps.nl/ --no-create-home --root /var/www/xxx.camilstaps.nl/ --shell /bin/sh xxx I'm ...
0
votes
1answer
76 views

How to remove disk lock [closed]

I have installed ubuntu 14:04 version, I already write the password on the disk. turns out it was too long for me, I want to disable it, how? I am a beginner, need an answer
0
votes
0answers
13 views

cannot add or update ubuntu 13.10- do not know owner password, errors [duplicate]

New to linux but I have searched the other questions on these errors, eg Getting an "Authentication token manipulation" error when trying to change my user password and I am still coming up ...
2
votes
1answer
353 views

How to unlock locked session?

I'm using xubuntu 14.04 on AMD based hardware. It is configured not to lock a session and not to power down automatically on longer idle times. There have been no recent changes or new software ...
0
votes
1answer
76 views

How to disable locking in LibreOffice?

I want to disable file locking in LibreOffice, i.e., the creation of a hidden lock file in the directory of an opened document. The advice of the official documentation to comment out the second of ...
0
votes
0answers
29 views

How to lock an application screen?

I know how to make an application screen always appear on top, but is there anyway to lock it in place and run in real time(for example, a movie clip runs in a borderless window at some part of the ...
-1
votes
1answer
111 views

Xubuntu apt-get Errors

when i try to use the command apt-get update these errors appear: E: No se pudo abrir el fichero de bloqueo «/var/lib/apt/lists/lock» - open (13: Permiso denegado) E: No se pudo bloquear el ...
0
votes
0answers
21 views

Ubuntu hangs on for 1-2 minutes, after pressing “Lock Screen”

I've got Ubuntu 14.04 LTS. Sorry for my bad English, I am a Pole. When I press "Lock Screen" (top right) system is hangs on for 1-2 minutes. After 2 minutes it work. The mouse works but I can not ...
1
vote
2answers
123 views

lock screen has turned to an old design

It's been two weeks since I installed Ubuntu 14.04 and today I found out my lock screen has turned to a very old design. like this image: I am new to Linux and I tried to fix the problem but I got ...
2
votes
2answers
80 views

What is the purpose of lock file? [duplicate]

I have seen a file named lock in /var/cache/apt/archives in my Ubuntu 14.04. This file has only root access. When I try to display the contents of this file using sudo nano lock the file seems empty. ...
1
vote
1answer
151 views

Computer not suspending when inactive in the main log-in prompt

My computer is set to automatically dim the screen and lock after 10 minutes, and suspend after an hour of inactivity. That works fine - but only once I've logged in. If I switch the computer on and ...
0
votes
2answers
204 views

How to lock without turning the screen (monitor) off?

Due to a recent bug, each time my screen turns off, I cannot get it back on. Currently, the screen starts turning off after the computer is locked - which effectively means that I cannot lock my ...
0
votes
0answers
154 views

Automatic Screenlock keeping screen on, ignoring timeout setting

I'm on a Macbook Air 4,1 running 14.04, with surprisingly minimal trouble so far. However there is an issue with the screen - when I set the 'Lock' on, in 'Brightness and Lock', when I close the lid, ...
-1
votes
1answer
105 views

shlock not found

I'm trying to use a script for backing up btrfs, and it uses shlock here is the script: btrfs-subvolume-backup now it says i need the inn package, and I've triedn installing it, but still no shlock ...
1
vote
1answer
69 views

Lubuntu Screen Locking Issue

I have a laptop running Lubuntu. When I leave it for about 10-20 minutes, the screen auto-locks. I can unlock it the first time, but I can not unlock it after that. Instead, I need to force reboot the ...
0
votes
0answers
25 views

14.04 keystrokes don't register at screen lock

I have a ps2/usb Linksys KVM switch and a Belkin usb keyboard. At screen lock, keystrokes don't register at "password" on lock screen. When I switch to a CTL+ALT+F1 screen, my keystrokes register ...
0
votes
2answers
78 views

Restrict access to windows system files

I have both Ubuntu and windows 8 in my PC, i just want to make sure that i don't accidentally delete windows files. Is there a way to do so?? Maybe a partition locking tool or anything. Is there a ...
0
votes
1answer
1k views

Folder Lock in Ubuntu and Windows [duplicate]

Is there any way i can password protect or lock folder in ubuntu that can also be opened in windows 8?? I am using windows 8 and ubuntu 14.04
1
vote
0answers
30 views

Reason of removing apt/dpkg/lock & apt/archives/lock

Is it possible to install multiple packages by deleting " Using apt & dpkg in the same time ". dpkg/lock & /archives/lock The Ubuntu Developers made it for reason "that you can not ...
0
votes
0answers
32 views

Suspend from keyboard at lock screen

I have a Logitech DiNovo Edge wireless keyboard with a suspend button. This button does work properly most of the time when the screen is unlocked on the last few Ubuntu versions (included 14.04). ...
2
votes
0answers
158 views

Unable to use webcams

I have 3 webcams attached to my laptop for a c++/opencv project and my program crashed. Now it keeps giving warnings that "device or resource busy". I suspect this is a OS level error. Is there any ...
6
votes
5answers
12k 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 ...
0
votes
2answers
32 views

Too Many Lock Screens

I installed a few different GUI environments for Ubuntu 14.04 and I finally settled on KDE. However, when I lock my desktop and come back to it I have to sign in twice... I have two different ...
3
votes
3answers
6k views

How do I unlock /var/lib/dpkg/lock? [duplicate]

I attempted to install dropbox on my Ubuntu system, but now I am unable to install or uninstall any software. I get this error: E: Unable to lock the administration directory /var/lib/dpkg/lock? I ...
0
votes
0answers
129 views

Kubuntu 14.04 locks mouse and keyboard after lid is closed

When I close the lid and after open it, the unblock screen, mouse and keyboard is locked. The laptop needs to be restarted by power button. Can someone help me?
0
votes
0answers
166 views

Ubuntu 14.04 can not recover from lock screen or suspend but goes to black screen

I'm using Ubuntu 14.04 on HP Z400 w/s. After a lock display or suspend, the screen goes black, pressing any key doesn't display any box to enter my password to unlock screen or do a normal shutdown. ...
0
votes
1answer
462 views

Can't see desktop

I tried to remove the guest account following the instructions on this page Removing Guest Session at login in Ubuntu 14.04 I followed the steps and then restarted the laptop. As usual the Lenovo ...
0
votes
2answers
110 views

Keyboard Shortcut not Appearing in Keyboard

I'm trying to play Minecraft (A video game) that makes use of F3. However, I'm on a laptop which requires you to hold down Fn in order for a F# key to be registered. The problem is that Ubuntu ...
0
votes
0answers
8 views

error while installing package [duplicate]

E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
1
vote
0answers
35 views

Lock-screen to take a picture after incorrect password [duplicate]

Is there a way to modify the lock screen to show a custom message and/or take a picture (/w the webcam) when incorrect password was typed in? (Like it was shown in the movie Goodbye World) (And does ...
1
vote
2answers
56 views

How to restrict account access temporarily ubuntu

I need to temporarily lock accounts for couple of users on my Ubuntu server. What would be the best way to do this? Reason for doing this is a maintenance. However for some users the accounts need to ...
2
votes
1answer
282 views

Are you a root? [duplicate]

If I want to install a program by: sudo apt-get install package_name I always get the error: E: Could not open lock file /var/lib/apt/lists/lock - open (2 No such file or directory) E: Unable to ...
4
votes
2answers
919 views

How to unlock file, locked by a process

The file is locked by a process, java in my case. I only want the lock to be released. lsof | grep /home/user/workspace1 A temporary solution was to 'End Process' from 'System Monitor'. But ...
0
votes
1answer
50 views

Click lock on Ubuntu 12.04

I am a new Ubuntu user and I really miss my click lock feature from Windows. Basically, what I need is this: I click on my left mouse button for 1 second (or an other small time interval) With the ...
3
votes
1answer
1k views

Unable to create lock file when starting mongod via upstart

I'm trying to set up my mongodb upstart script to work as an arbiter, but I'm having permission problems when trying to create the lock file in the data directory: Tue Apr 1 17:11:01 [initandlisten] ...
3
votes
1answer
91 views

How to launch program on lock and close it on unlock [duplicate]

Have siblings who like to "play" with my laptop by waking it from suspension and then typing random keys on the keyboard into the password field. Afterwards, they always deny it. I plan to install ...
1
vote
1answer
78 views

Unity is locked, you can not remove icons or move them

Issue the following, I can not change the order of icons on the unity, nor their sleep or anything to add that it would be "locked", the programs run.
0
votes
1answer
1k views

Cannot mount iPod touch to Ubuntu due to Lockdown errors

I sit before you with the common question of how to sync an iPod 5G or any iDevice to Ubuntu 13.10. I have asked Apple tech support many a time aswell as their online chat and it has yielded no info ...
2
votes
1answer
105 views

Put monitor to sleep when locked?

Whenever Ubuntu 13.10 locks: Instead of making the monitor go black and the power button (on the monitor) turn orange like Windows did. It loses connection to the computer and shows me the Dell ...
2
votes
2answers
112 views

What is the role of lock files in a system?

I can see there are many lock file here and there in my system. What is the exact role and purpose of those lock files? In my system I got this list, /run/lock/whoopsie/lock /proc/sys/dev/cdrom/lock ...