CentOS 5 :: Lock Screen Stopped Working?

Sep 21, 2010

Is it just me, or has 'lock screen' stopped working in a recent update? I updated my install today and after rebooting I can't lock the screen... the screen saver doesn't lock it and if I select 'lock screen' manually from the menu then... nothing happens.

I even created a new user in case there was something weird in my configuration, but logged in as them I can't lock the screen either.

This is obviously a bit of an issue in an office environment as I don't want to have to log out every time I leave my desk.

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Ubuntu :: Lock Screen Not Working (screen Saver Getting Activated)?

Jul 10, 2011

When I hit Alt+Ctrl+L my system is starting the ScreenSaver but not locking the screen. The keybinding is correctly set. This is happening in only root account but in another user account it works perfect !

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Ubuntu :: Click The Lock Screen Button, Lock Screen Doesnt Work?

Apr 5, 2010

When i log in as root, and try to click the lock screen button, lock screen doesnt work? Is it disabled by default?is there anyway to lock screen when logged in as root

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Debian Multimedia :: KDE Lock Screen Not Working

Jul 11, 2015

Just upgraded to Jessie from Wheezy. The process went smoothly.

I've noticed the lock screen is inescapable. The "Unlock" button does nothing, the keyboard is completely disabled, and all I have is a clock to stare at for all of eternity until I force a reboot. It doesn't hang or freeze, I'm just unable to get out of the lock screen. I've tried configuring the widgets and stuff in the System Settings, but I can't make it usable.

It was working perfectly in Wheezy, and is a pretty important feature that I use all the time when other people are around and I need to leave my station.

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Ubuntu :: Lock Screen Not Working After 10.10 / 11.04 Upgrade

Aug 11, 2011

after getting my keyboard and mouse working (URL... not even when I was compiling kernels from floppies that came in the back of books did I have to work so hard to get the KEYBOARD working, sheesh), I have a mostly working system.However, Lock Screen does not work in any way, shape or form:

- It doesn't work via the keyboard shortcut Ctrl+Alt+L
- It doesn't work if I select it from the Power button on the upper-right
- It doesn't work if I press the Power button to suspend (even though all the correct things are ticked/unticked in gconf-editor)
- It doesn't work if I switch users and back

Now, I do have a laptop running 11.04 and its Lock Screen *does* work. The only difference I can find is that the laptop says gdm is running screensaver.If it shouldn't be running, why else might Lock Screen not be working?

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CentOS 5 :: Lock Screen As Root?

Aug 11, 2009

I've googled for the answer to this but every thread has the same answer "don't log in as root". For once I'd like an actual answer to the question if possible. All of the jobs that I run are all through the root account and I'm constantly using ssh into other workstations and servers to change config files or whatnot. I'd like to be able to lock the screen when I take short breaks or head out for the day while being able to leave jobs running. For example I am currently backing up a server onto another one and would prefer not having to stop the jobs when I leave for the day(there's over 400GB to move).

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CentOS 5 :: Blank Screen With VNC Over SSH, And Lock Ssh Session?

Sep 2, 2010

I have 2 servers, I set the first one up so that I can remote to it and connect with VNC over ssh by following:[URL]ServerThe 2nd server I did the same, but I cannot connect! When I do, vncviewer prompts for a password and then opens a window of the correct size, but it is all white and then my ssh session is locked! I can't enter any more commands, I have to kill the session.

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Ubuntu :: Screen Stopped Working

Jul 30, 2011

So my laptop screen stopped working and i dont have the money to fix ti right now so i'm trying to use my lcd screen with it.the problem is that its set up not to mirror screens but to have 2 screens. This a problem because i cant do anything but hit alt f2 to open up terminal and google chrome and what not.access my display settings to set it up to mirror the screen because i have no top bar.all i have access to is a my display background.I'm using ubuntu 10.10 but i'm in 10.4 mode right now.

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CentOS 5 :: Lock Screen After System Resume From Suspend / Hibernation?

Mar 21, 2009

For the sake of security, I want the screen to be locked after the system is resumed from suspend or hibernation. Now the only way I can do this is to check the options "Lock screen when screen saver is active." in the screensaver preference. But this method is annoying since I have to type the password to quit the screensaver. Is there other way to do this? Thanks.

By the way, I use CentOS 5.2 x86_64.


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CentOS 5 :: What Program Runs The Session Lock And Screen Saver For Gnome And KDE On 5.5

Jul 27, 2011

what program runs the Session lock and the screen saver for gnome and KDE on centos 5.5. But most importantly id like to know what the config file for the screensaver/session lock is called and where its most likely located.

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CentOS 5 :: Php Stopped Working After Upgrading To 5.6?

Apr 9, 2011

After upgrading to 5.6 I was trying things out and noticed for some reason the php on my server has stopped working. Anybody have a clue what's wrong ? I did read the release and it did mention the upgrade would then change my php.

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Software :: MRTG Stopped Working On CentOS CPU Only?

Feb 25, 2010

I recently migrated my mail server over to a new machine. For some reason, after verifying that the OIDs are correct, MRTG won't graph anything. I've quadruple checked the OIDs and used the strings as well, it won't graph at all. Graphs for RAM, ethernet, packets, etc. are working. CPU is the only thing not working. They work when I use snmpwalk with them and they do populate values. The logs show unknown SNMP vars for cores 1 & 2, but there's no mention of cores 3 & 4 entries in the logs.

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Ubuntu :: Sudo-apt Get Not Working - Not Get Lock /var/lib/dpkg/lock Resource Temporarily Unavailable

Jun 12, 2011

I recently installed Ubuntu 11.04 on an old Sony Vaio laptop. I was following some of the steps here..[url]

The step "Enable Full DVD Playback(Dual Layer DVD Support)" did not finish correctly doh and now I can't use 'sudo apt-get' for anything or the software center or using the 'Update Manager' does not work.

The update manger says it may be caused by an update not finishing correctly which sounds correct as explained above. The apt-get command gives me back the following....'Could not get lock /var/lib/dpkg/lock resource temporarily unavailable' 'unable to lock administration directory /var/lib/dpkg is another process using it?'

I tried the obvious restart but that hasn't worked.

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Ubuntu :: Volume Controls Not Working After Enabling Num Lock Or Caps Lock?

May 2, 2010

There is a very strange problem I've been having. When I enable either Caps Lock or Num Lock the media controls on my keyboard cease to work. I have Googled this one to death but found nothing. This problem existed in Xubuntu 9.10 and now still exists in Xubuntu 10.04. The keyboard I use is a Logitech Elite Keyboard. I would love to be able to use the Caps Lock and Num Lock without the worry that I am disabling the media controls

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CentOS 5 :: Sendmail Stopped Working After Latest Updates

May 31, 2010

We are running CentOS 5.4 x86 on ESX 4 Server. We have a busy Help Desk, a Forum and several name-based websites running. Weve been using CentOS for this 'purpose for several years (different versions) and so far we have never had a problem. On Saturday, I applied all the latest updates including the Kernel updates. I rebooted the server and all seemed well until Sunday morning when I didn't get my Logwatch in the mail. Then I got a telephone call from a customer asking me why I hadn't responded to a Trouble Ticket he had created on Saturday afternoon (creating a TT sends an email via sendmail to all the support staff). I did a few tests and sendmail has just stopped working. The Logwatch had been created and had been sent to root, but all mail for root is redirected to my Mail Server on e different box (GroupWise). There was nothing wrong with the mail server, but sendmail has just stopped.

Fortunately I had created a snapshot before I applied the updates, so I reverted back to the snapshot and mail started working again, but I lost 2 days info because I had run the backup before I applied the patches. Now I see there are 132 Updates available, but there is obviously a problem somewhere in there!

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CentOS 5 :: Mail Stopped Working After Hostname Change

Aug 18, 2010

I built the system with one name and now want to change it.I do the usual things. change the /etc/hosts file change the hostname with the command hostname newname changed /etc/sysconfig/network and then mail stops working. Put it back to the old name and it works fine.So I am guessing I am missing something in the configuration for sendmail. I checked the sendmail.cf file under /etc/mail and no reference back to the hostname was found.I also tried the GUI on the console to change the hostbname.

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CentOS 5 Server :: Ssh Connection - Was Working - After Update - Stopped

Oct 1, 2010

I have openssh running it was working last week then an update was done and now ssh does not work. removed the updates and the problem still exists.

Its CentOS 5.5 with all the latest updates for 64 bit!

Issue if as follows:

Connect locally to the loop back ip or remote ip the connection is disconnect right after the correct password is entered.

Here are copies of the log, sshd config.

sshd config:

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CentOS 5 :: Mail Server Stopped Working - Cannot Allocate Memory

Jan 21, 2011

My mail server stopped working this weekend, when I got in today I restarted and all the emails came through. The panic_log shows: daemon: accept process fork failed: Cannot allocate memory several times over the course of a few minutes. Can anyone give me advice on troubleshooting this one?

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CentOS 5 Hardware :: External Hard Drive Stopped Working?

Aug 26, 2011

I have a 2TB hard-drive connecting via a usb port on my server for automatic backups. I noticed the backups had stopped working and then I realize I had lost the ability to communicate with the drive.

/sbin/lsusb gives:
Bus 005 Device 001: ID 0000:0000
Bus 002 Device 003: ID 046b:ff10 American Megatrends, Inc.
Bus 002 Device 001: ID 0000:0000
Bus 002 Device 002: ID 046b:ff01 American Megatrends, Inc.
Bus 001 Device 005: ID 059f:1018 LaCie, Ltd


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CentOS 5 Hardware :: Sound Stopped Working On Dell Inspiron E1505

Sep 27, 2009

I have made sure the card is not muted using kmix, alsamixer, and running alsaunmute 0. It was working for some time and just stopped. I am not sure if getting rdesktop to work on the laptop caused the issue or not since that seems to be the last major thing I did. (missing my sipie.py). This is what I am working with:

~]$ uname -a
Linux xxxx.xxx.xxx 2.6.18-128.7.1.el5 #1 SMP Mon Aug 24 08:20:55 EDT 2009 i686 i686 i386 GNU/Linux
~]$ lspci
00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub (rev 03)


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Ubuntu :: Can't Lock Screen - Pressing "Lock Screen" Does Nothing

Jan 3, 2010

I have experienced that the button in my main menu "Lock Screen" does nothing, so I can not lock my screen. What could be the problem? Is there any command in terminal what I could write, so I can see is there an error output or something?

I am using Ubuntu 9.10, GNOME.

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CentOS 5 Server :: SFTP Login For "root" Stopped Working?

Apr 9, 2011

I've been administrating a dedicated Linux CentOS 5 (Linux server for around 2 years, and although not a network or Linux expert, been learning to configure as need arises. Primarily using Plesk for day-to-day, but occasionally using Putty to SSH into server.

For all the time I've had the server, I've been connecting to my server via sFTP using "root" password. ( Although, I know this is really bad practice, I assume made safer by connecting with SSH FTP)

After spending another normal day in the office developing websites, connecting to my server as root using SFTP in Filezilla AND Dreamweaver I left for the night.

Returned next morning, after having done no manual updates or amends to my server; I could no longer SFTP into my server?

Thought it may be related to my office network, so tried it from home over the weekend, same result; can no longer connect SFTP for root?

I can connect to the server via Putty using my "root" username and password.

After spending hours looking on the internet for a solution, I'm lost for ideas as I didn't make any changes?

What happens when I open my Filezilla and try connecting as SFTP is it states:

Error:Connection timed out
Error:Could not connect to server

I checked server log /var/log/secure and it states:

Accepted password for root from UNKNOWN port 49212 ssh2
Apr 9 07:41:41 s15320264 sshd[7122]: fatal: Write failed: Connection reset by peer

Odd part is, it's worked fine for weeks, months without ever failing to connect?

Also, notice that Putty connection seems to take much longer to authenticate root user than it used to?

Checked via Plesk Health Monitoring and all CPU, Memory and Disk Levels are well below any alarm levels.

I have run all Plesk updates to 10.2.0 in the hope that it resolved it, but to no avail.

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CentOS 5 :: Yum Stopped Working - Errors Returned While Uploading " Failed To Open Directory With Write Permission"?

Jul 26, 2009

Its been a while (maybe too long) since I last used yum to check for updates / install anything on my server, but when I tried the other day I got the following response:

# yum list updates
Loading "installonlyn" plugin
Setting up repositories
Error: Cannot find a valid baseurl for repo: updates[code]......

Trying other mirror.Error: Cannot open/read repomd.xml file for repository: updates

A few weeks ago there were some network changes, but nothing else should have changed OS side.I have checked /etc/resolv.conf and that looks ok - ping and wget have no problem resolving hostnames.I tried setting enabled=0 in yhe .repos files - this allowed me to do a 'yum list', but 'yum list updates' returned an empty list - I am definitely not 100% up to date!

P.S. Attachment not there at the moment - getting the following error when I try to upload the zip file...Errors Returned While Uploading

Failed to open directory with write permission: /var/wwwthtml/oldwebcopy.centos.org/uploads/newbb

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CentOS 5 :: Yum Stopped Working After "yum Clean All"

Feb 3, 2010

Yesterday I got my wireless network setup working and the tried to do a

yum check-update

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Slackware :: KDE 4.4.5 - No Lock Screen - No Screen Saver

Aug 23, 2010

What happens is that I resorted to deleting my .kde directory after my kid destroyed my profile where title bar, menu, konsole get broken. After deleting, I login again thus regenerating the .kde directory. To avoid my kid from messing my desktop, I tried to lock it. It does not lock.

It just need a KDE full restart perhaps since when I login the other day, it now works.

I'm updated to Slackware current for almost a month already and have not played a lot on KDE desktop (busy programming stuff).

However, on day I tried to lock the desktop in KDE to avoid the kid from destroying my cool desktop setting, but it didn't lock. Cool, so I tried screen saver and add an option to lock the screen.

When I test screen saver, it displays. But when I wait for 1 minute(I set it that way), it doesn't fire up. Not even after 15 minutes which I think the default.

It usually work before (several months ago) using the lower version of KDE. It is just last Saturday that I noticed it.

I tried to dig the profile management but I could not find anything relevant there.

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CentOS 5 :: Way To 'lock' To Minor Release Version Of Centos?

Aug 18, 2010

I've had two centos smtp relays setup since 5.1, and it seems every day there are updates, and about every 3 months new minor releases.Is there a way to "lock" to a minor release version of centos? I use yum update to run updates, is that the correct process?

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Ubuntu Networking :: Wireless Suddenly Stopped Working AND Rfkill Command Not Working

Jul 13, 2011

When originally installing 11.04 I had problems getting my Ralink 5390 wireless card to work.

Today my computer froze completely and I had to turn it off via the power switch. When I turned it back on, wireless was no longer recognized! My iPod can connect to the network just fine, so it must be an Ubuntu problem. There are no problems with my ethernet connection either.

I researched this and found several threads about blocking and unblocking wireless devices using the rfkill command. Well, unfortunately for me the rfkill command doesn't work. When I type sudo rfkill list or sudo rfkill unblock all, nothing happens; it just returns me to my bash prompt. I even tried uninstalling and reinstalling rfkill...nothing.

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CentOS 5 :: Dual Head - Screen - Not Working From Laptop - Stacktrace

Jun 5, 2009

I am running CentOs 5.3 x86_64 on a Dell Latitude E6400 and can't get dual head to work.

My graphics card(s) are Intel Mobile 4 integrated (one in the laptop, one in the docking station)

My displays are two Dell 2208 WFP

I run the "Display settings" GUI and select "Dual head", "Spanning desktops" with the right card & monitor.

When I restart X it fails to start with stack trace in the /var/log/Xorg.0.log file (full log attached)


My /etc/X11/xorg.conf is below.

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Ubuntu :: Can't Lock Screen From Ssh

Jan 15, 2010

I'm trying to use 'gnome-screensaver-command --lock' to lock my computer so that when my girl is on it I can **** her off

I can run the command from the terminal and it works just fine, but when I ssh into my computer and try to do it, I get the error

** Message: Failed to connect to the D-BUS daemon: /bin/dbus-launch terminated abnormally with the following error: Autolaunch error: X11 initialization failed. It'd be nice to be able to lock my screen from wherever.

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Ubuntu :: Don't Want The Screen Lock?

Sep 17, 2010

I am using Ubuntu 10.04 LTS. I leave the pc for only a few minutes and when I come back the screen is black. I press a a key or pass the cursor over and it opens but I have to enter my password then press the unlock button.I am none to happy with this happening each time I happen to step away from my computer for a couple of minutes. I would like to know if there is a way to disable or turn off this function

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