Ubuntu :: Screensaver + Lock-screen Works But Idle Time Not Detected?
Dec 6, 2010
I am running 10.04 (i686) inside kvm-qemu client. The host is a headless 10.04 (x64).The issue is that the screensaver does not activate after a certain period of idle time (1 min). I can successfully activate the screensaver by running gnome-screensaver-command -a. It appears, then, that idle time is not being registered correctly. There are some very sporadic logs in daemon.log:
./daemon.log.1:Dec 1 11:01:24 myserver gnome-session: WARNING: GSIdleMonitor: IDLETIME counter not found
./daemon.log.1:Dec 2 12:35:53 myserver gnome-session: WARNING: GSIdleMonitor:
I can use the gconf-editor to disable the screen-saver lock and set it to activate when its idle. But no matter what I change /apps/gnome-screensaver/idle_delay to, the ScreenSaver UI is never updated and stays at the default 5 minutes. There seems to be no link between the slider bar in the ScreenSaver Preferences and the value that lies at /apps/gnome-screensaver/idle_delay...
The reason why I'm doing it through gconf-editor is so a start-up script I have created can use gconftool-2 to alter settings for certain users on login.
Is this broken in Ubunto 10.04 or am I looking in the wrong place.
Is there an easy way to lock my computer screen without a screensaver running? What I'm trying to do is basically fire up a web browser or terminal window that I want to watch/monitor but lock my screen so that it can't be changed unless you know the password to log in as that user.
running 10.04 Netbook edition. I would like my screen to lock after the netbook goes to sleep but NOT after it enters the screensaver. is this possible? i use my laptop to read in the university a lot and to save power tell it to go into black screensaver after a minute of inactivity. if i enable the lock option i have to enter the password each and every time after the black screensaver activates. but if i deactivate this option and then put the netbook into sleep/hibernate mode it doesn't ask for a password (which i would like) is there any way configure separate passwords for these instances or are they firmly linked?
It's very disturbing when making a Kiosk application, every time the lock screen and screensaver shows up, also many popup + battery or updates shows up. Where and how can I completely disable the lock screen, screen saver and alerts via a configuration file or from the terminal? I have the tried following but nothing works: failed
USB driver bug exposed as "Linux plug&pwn" or this link.Two choices [GNOME, Fedora 14]:
1 - use the gnome-screensaver
2 - use the "switch user" function [gnome menu -> log out -> switch user]
So the question is: which one is the safer method to lock the screen, if a user leaves the pc? Is it true, that using the  method is safer?Why do i think this? - The gnome-screensaver is just a "process", it could be killed. But if you use the log out/switch user function, it's "something else". Using the "switch user" function, could there be a problem like with the gnome-screensaver? Could someone "kill a process" and presto...the lock is removed?Could the GDM [??] "login windows process" [e.g.: a picture of it] get killed and the "lock" gets owned?
p.s.: if the  method is safer, then how can i put an icon on the GNOME panel, to launch the "switch user" action by 1 click?
Updated to 11.0, and have this somewhat annoying issue: the Gnome screen lock function no longer does anything.Neither pressing Ctrl-Alt-L, or selecting the lock function from the menu, does anything at all any longer
I'm running Fedora 14 and set the screensaver (in System>Preferences on the Gnome GUI) to activate after the computer is idle for 30 minutes. After the screensaver is activated, and a press a key or the mouse, the screen is back to normal -- no problem.After the screensaver has been activated once, however, it comes back on very quickly -- usually in 2 or 3 minutes if the computer is idle. The only way I have found to correct this (and set activation back at 30 minutes again) is to log out and back in again.How can I correct this, and automatically set screensaver activation back at 30 minutes each time the normal screen is reactivated?
Is there a way to set Linux to automatically log in to a specific user account and at the same time lock the screen? I want to save time and trigger various software that always should start up on boot, while leaving the computer unattended during startup (extra important and practical for remote control boots), by enforcing a 'screen lock' so that no-one can see what happens behind the login screen without entering the login credentials.
I've just installed 11.1 and so far things seem to work OK. When I left the machine the screen saver kicked in and wouldn't let meback on with my password I chose during installation (and the only password I chose!) Re-booting the machine sorted the problem...until next time! I have now disabled the lock out for the screen saver so things ought to work now, but why did it do this? New with openSuse!
I don't know if anyone else sees this, but I get some odd behaviour when using VMware Player sometimes (Ubuntu 10.10, VMware Player 3.1.2 build-301548, dual monitors).My screen locks after 5 minutes of inactivity. I run a Windows XP VM under VMware player occasionally for certain things and that has a screen-lock time of 15 minutes or so. When running the Windows VM in full-screen on one of my two monitors (not tried it on a lower res), if I place the mouse cursor on the XP VM screen and leave it for > 5 minutes, the screen does not appear to lock. I can come back to the machine and still interact with the Windows XP machine and do what I like. If I move the mouse cursor outside the bounds of the XP VM screen, then the whole screen goes black and presents me with the password prompt to unlock the machine
I'm writing a program which does some heavy number crunching, but I wish for it to only use the CPU's idle time when available (so it won't slow down any other processes). What's a POSIX (or portable) way to do this?
After some idle time Slackware hangs up/freezes. When, for an example, i turn on music i can hear it on idle time but after some time music still plays but i'm losing picture (monitor detects no signal), num lock is locked, led on keyboard are turned on but won't turn off while pressing num lock. I've switched off power saving options in Slackware and on bios setup.
My spec is:
X4 620 (without overclocking) AMD 760G (Radeon HD 3000) Catalyst 11.5 for Radeon graphic.
BTW - computer works fine with Windows. Also, with Slackware i can work for an hours, many hours and everything is fine but as soon as i leave it for some amount of time = it hangs/freezes. There is something wrong with hibernation. Not always computern is turned off correctly. TV is switched off, slackware logged off but i hear drives working and cooler fans. It should be switched off completly.
Anyone have an alternative to gconf-editor for changing the idle dim time? I have a Vaio, which hasn't exactly been compatible with ubuntu but I've been making it work.What I'm looking for is an alternative, like the the one I'm using to control the back light (nvclock).
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?
Alright guys. I need to find a way to enable a black screen screensaver (or turn off the monitor, or something to avoid burn in) while the machine is sitting at the login screen and completely turn off the ability for the computer to sleep. how I can accomplish that?
how to remove the login prompt during the idle time. or just prolong it for about hours and hours so that this prompt wont appear each time i'm away. i still monitor the computer just 4 meters away and i have to get up becasue of this prompt.
My hard drive all of a sudden starts to read and write all on its own for around 15 seconds at a time while at idle or while I am just browsing the net. At first I thought it was from cron running but I have that disabled.
How to make the system boot faster by removing the idle time between 5s to 10s? bootchart attached. It is Ubuntu10.04LTS by the way. One more hint, the screen black out for ~4s after "Begin: Running /scripts/init-bottom... Done." I don't know what is going on during that 4s, but my best guess is there is a way we can get rid of it. Bootchart can be found here:
Running RHEL5 and because of the environment that we are in we have to disable the users being able to change the screen saver. I have tried using the gconf-editor to see if I can disable it but don't know if that is the correct way of doing it. I also looked in /etc/xdg/menus and really don't want to miss with that.
I have removed gnome-screensaver, and to the best of my knowledge, it has not been replaced it with any other screensaver application.I have set System->Preferences->Power Management to never blank the screen. However, Ubuntu still blanks the screen if there has been no user interaction for a while.
I have two opensuse 11.3 first with x86 second with x86_64I have connected the KVM and Scroll-lock button works doing "xmodmap -e 'add mod3 = Scroll_Lock'" in a terminal windowIf I do Ctrl+Alt+F1 to go to the console in both computers, pressing Scroll+lock twice works fine to change between computers but Scroll-lock twice don't works in XWindows runlevel.
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 !
I've recently done a fresh install of 10.04 on an Acer Aspire 5720 and it went pretty well. However I've a problem with the logon appearing twice. If I leave my computer idle for too long the screen locks. when I return I'm asked for my password which unlocks the computer but within a few seconds the screen locks again and I need to enter my password for a second time. This time the computer unlocks and stay unlocks.. but it's annoying I have to unlock it twice !
How can I extend the length of time before it unlocks or disable it all together.. until the problem gets fixed?
When I have the power option for "Dim Display When Idle" checked, how can I change the amount of time before Ubuntu thinks I'm idle? I'm not talking about the screensaver, I'm talking about the option in the Power Management app.
for some reason, ubuntu cant see it anymore. so how to fix? windows still prints to this printer on the network. I deleted the printer in ubuntu and tried to redetect and now it says no printer at that address.
before I deleted it, I recall it saying something about the backend had failed?
My Gnome screensaver doesn't work, although it once did.
I have searched for a solution to this problem but no luck. I am running FC 11 and out-of-the-box gnome. At first the screensaver worked normally, shutting off the screen after 5 mins. Now it does not do so. I found the following command line suggestion in the forums, and it looks like it may point to a problem -- the screensaver is inactive, but how to make it active? I may be misunderstanding the term inactive, of course. Logically, the screensaver would have to be inactive if I am typing a command.
In any case, the query command shows:
Just in case the screensaver really was not running, I tried this command (which I found in another post):
But the query returns the same thing as before.
The only thing I can think of that might be an issue is that using the "appearances" background facility I added a couple dozen pictures that I thought I might use as screen background. Not long after that I discovered that my screen did not go black after 5 mins as expected. Not sure this correlation has any causal meaning, however. I then tried various things, finally returning to the plain (blue) default. That seemed to fix it for a short while, then after a couple of days, the bad or non-behavior returned -- the screensaver does not work.
(update -- I removed all the extra background pics and it makes no difference.)
My system runs all the time, but I don't want the screen to be on all the time.
After 10 minutes in idle state (watching a video in vlc or in flash counts as idle time too) the screen blanks. As I mentioned in the title, the backlight level is lower when screen turns back on. This is a new feature of the problem, and might be related to a recent upgrade of xorg. Where is the configuration file that handles the screensaver? And why is it even enabled by default?
i have fedora 8 on my machine...i want to uninstall it..i restarted my machine with windows CD on it....but shortly after pressing key to continue configuring the installation, screen goes blank and computer becomes idle....i tried using about 10-15 different CDs of windows OS but failed every time...what could be the reason and how can i fix this......NOTE: but if i try to reinstall fedora the problem dosen't occur.
I skipped over Jaunty on my main desktop because Intrepid had been working perfectly for so long. Finally took the plunge to Karmic, and have had major instability problems. I cannot trace them to any particular program I am using. At first it seemed related to power management, since it would lock up every time it had a period of extended inactivity. I have disabled ACPI in my BIOS (I think), and any power management settings I could find in gnome to try to troubleshoot. That seems to have helped, but it still happens semi-regularly, sometimes when I am in the middle of using it. I have tried checking logs and googled anything that seemed important. ie a message in kern.log reads: Clocksource tsc unstable