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18
votes
4answers
6k views

How can I put my HDMI display into (and out of) power save mode?

I am using a Raspberry Pi to run an information display in an office. I want the display in power save mode when outside of business hours. I was going to use cron to execute something at the ...
8
votes
2answers
3k views

How to create a screen lock timer for Awesome WM?

I've got an Ubuntu 12.04 system with Awesome WM, and I'd like the screensaver to work like in Unity: GNOME Screensaver Ctrl-Alt-L to lock N minutes' timeout which respects applications which ...
7
votes
1answer
419 views

How can I tell if xscreensaver has my screen locked?

I'm thinking through alerting stuff, and decided that, if my screen is locked, I'm not there so I should push the alerts to my phone. But, I cannot currently tell if the screen is locked. I could put ...
6
votes
3answers
362 views

how to stop the screen from blanking / blacking out?

I have re-installed Debian 7 (Wheezy) after a while. For the first time, I am using the open-free nvidia drivers (not nouveau) and vesafb for virtual consoles. I cannot, for the life of me, stop the ...
6
votes
2answers
3k views

Permanently remapping a key on Linux

I'm using an aluminum Apple keyboard with my Mandriva 2010.2 Linux system. I remap the Apple Command key (⌘) to control using the following .Xmodmap file: keycode 134 = Control_R remove mod4 = ...
5
votes
2answers
623 views

How to disable “Shake password dialog when authentication fails” of Gnome Screensaver?

Is there any way to disable the animation which occurs when attempting to unlock gnome Screensaver and failing? Currently the password dialog shakes back and forth and for some reason on some laptops, ...
5
votes
2answers
5k views

Are there any screen locking solutions for openbox?

If I want to use OpenBox then how can I lock my "monitor" when I leave the PC for a few minutes? Like the gnome-screensaver under GNOME.
5
votes
1answer
2k views

How can I trigger the screensaver's locking feature using D-BUS from the command line?

How can I trigger the screen saver manually from the command line? I'm using GNOME 3.8.4 on Fedora 19, but the solution should not necessarily be specific to this distro.
5
votes
2answers
3k views

Display shuts down while watching a movie after 10 minutes no matter the settings in Elementary OS

I've noticed this when trying to watch movies on that laptop running eOS. After 10 minutes or so the display is turned down. I've looked for settings against this and found the following: Power ...
5
votes
2answers
804 views

Run commands after unlocking X screen (KDE)

When I leave work, I lock my machine with ctrl + l to lock the screen. When I come back, I always forget to log into jabber. Is there a way to run a command after the screen is unlocked? This is in ...
5
votes
1answer
453 views

Wayland and full-screen apps

Will Wayland, unlike X, be able to "know" about a full screen app, and not fire up the screensaver? I remember reading up on this, and X (or present KWin/Compiz) cannot know or be told when to hold ...
5
votes
1answer
486 views

Console ScreenSaver without X11

I'm trying to setup a very slimmed down console only Debian system to act as a simple slideshow photo display. I know that it is possible to show graphics (I guess using the framebuffer) in the ...
5
votes
2answers
1k views

How to turn off xscreensaver automatically while watching Flash video?

Can I configure Flash to automatically disable xscreensaver while it's playing video? Or, conversely, configure xscreensaver not to trigger while Flash is playing video? I've seen this question on ...
5
votes
2answers
453 views

Is there a way to determine what's inhibiting the screensaver?

I have an issue where most often my screensaver will not activate and it's somewhat hard to determine what's preventing it. Is there a way that I can view whatever processes are asking the OS not to ...
4
votes
1answer
714 views

How to make the display go to sleep when screen is locked?

I’m using a Debian amd64 install with the default GNOME desktop. I’m aware that you can go into System | Preferences | Power Management, and choose to make the display go to sleep after a certain ...
4
votes
1answer
865 views

Is there a way to stop screensaver on keyboard only?

Let's say you have screensaver running. When you move your mouse or hit any key on keyboard screensaver will be stopped. The problem is that with modern, laser based mice, slight vibration of ...
4
votes
1answer
118 views

Camera to check if I'm watching the computer?

Is there a program to do following: I have a webcam on my laptop. I would like that my computer starts a screensaver if I'm not watching my laptop and stop the saver when I'm watching the screen. Is ...
3
votes
2answers
7k views

How to disable screen saver and power management in linux by command line?

Is there a command line you can run that can enable in-habitation, disabling computer going to screen saver, sleep?
3
votes
2answers
908 views

Disable xscreensaver when program is running?

I find it very annoying that xscreensaver sometimes helpfully starts while I'm playing Urban Terror, and was wondering if there is a better way to solve this than making some script to run Urban ...
3
votes
1answer
803 views

Change xscreensaver lock option command

How could I change the lock option for the xscreensaver from the command line? Been looking around and couldn't find anything about it. xscreensaver-command -lock will lock it right away, which is ...
3
votes
1answer
309 views

How to wake up monitor from bash?

I've got screensaver set to 5m xset s 300 and I need to wake up monitor(suppress screensaver) in 1 hour from bash script. How do I do it?
3
votes
1answer
84 views

Detect if screensaver is active

I want to detect whether the screensaver is active. On Ubuntu 14.04 and Fedora 21, I tried the following command: $ dbus-send --print-reply=literal --dest=org.freedesktop.ScreenSaver ...
3
votes
1answer
412 views

xautolock: how to auto-unlock on user activity?

I need to run a script after a period of user inactivity. For that I use the wonderful program xautolock. Now, I also need to run another script when the activity is resumed (e.g. mouse is moved or a ...
3
votes
2answers
145 views

Screen content showing for a few seconds before screensaver starts (Fedora 14)

This happens every now and then, I have not pinned down the cause but let me describe the symptoms. On occasion when I come back to the computer after a few hours the screen is in energy saving mode, ...
3
votes
1answer
49 views

On lockscreen how can I auto-turn off monitors if they wake up?

I'm on Debian (Jessie) using KDE 4.14.2 nothing really stood out to me in the System Settings on how to trigger a lock screen and after doing a bunch of research I ended up binding Ctrl+L to run the ...
3
votes
0answers
35 views

Xorg configuration hook for unblank screen

Is is possible to execute a command automatically when X comes out of a power saving screen blank? I.e., something that would be triggered when I hit a key/move the mouse to power up the display ...
3
votes
0answers
506 views

What's keeping my screensaver from activating?

I'm running Linux Mint 13 KDE on an HP Pavilion g6 laptop. The screensaver, which in my case is xscreensaver, but I've noticed this behavior with kscreensaver as well, never seems to activate. ...
2
votes
2answers
6k views

Starting screensaver from terminal

I like the 'Black Screen' screen-saver. Because it makes the monitor look like turned-off. But my CentOS takes minimum 1 min. to start it automatically. Can I start it instantly from the terminal? ...
2
votes
1answer
54 views

How to avoid system timeout to login screen when I make a cup of tea?

Linux Mint 17.1 (MATE) running on HP G250 Laptop and older HP desktops. It's just me and the dog at home and I like to run the computer all day, but it keeps returning to the login screen after a few ...
2
votes
1answer
610 views

Maze screensaver on old Unix computers

I used to use unix computers in the 90's for building GIS systems. There used to be a screen saver which consited of a maze that filled the screen. Then the computer would logically solve the maze ...
2
votes
1answer
619 views

Slide show/screensaver over login screen on RHEL 6.4

I've see the slide show (Pictures folder) screensaver. I've also seen how to change the background behind my login screen. What I haven't been able to figure out is how to display a slide show as a ...
2
votes
1answer
297 views

Fedora 15 screensaver won't wake up after about 10 hours

I can switch to another Terminal via CTRL+ALT+F2, but the screen remains black and won't wake up. Sometimes, it wakes up after several retries. Any ideas to resolve it?
2
votes
1answer
274 views

Computer logs out when resuming from sleep

When I leave my laptop for a while, after it blacks the screen (as I configured XScreensaver to do), when I return, it awakens to the login screen. When I login, there is no trace of my previous ...
2
votes
2answers
100 views

How do I prevent the screen from blanking?

I am running 12.04 Ubuntu Server and my screen blanks after some time. I am unable to unblank it without power cycling the computer. I can however log in via ssh and type who see that the tty1 ...
2
votes
0answers
104 views

Alternate screensaver settings on different X instances

On my desktop system, I run two instances of X-- one is associated with the physical screen, one is associated with a virtual screen (a la vncserver). I use the physical one to do things related to ...
2
votes
1answer
107 views

Cross linux method to detect screensaver or locked screen running

I'm looking for a cross linux method to detect if screensaver (both XScrenSaver and non-XSCreenSaver) is running or if locked screen is up. Bash or c method would be awesome. Can you please help me ...
1
vote
2answers
2k views

Tell mplayer to prevent the screensaver from kicking in while playing

I know mplayer has some heartbeat setting but I don't recall what it is, could anyone tell me? another one of those annoying things that used to just work and somewhere along the line stopped being ...
1
vote
1answer
111 views

Cron job — If computer inactive for x minutes turn wifi off

I would like to have an alias command in my .bashrc that could be ran at startup. That states: If computer is inactive for X minutes then turn off wifi. How would I do that? I am currently using ...
1
vote
1answer
113 views

Disabling power management

I am running Cubieez on a Cubieboard2, I need to disable screen saver and power management, I've followed several tutorials about but none seems to work, I've written: xset s off. xset -dpms xset s ...
1
vote
2answers
1k views

Locking the screen when laptop lid is shut (Gnome 3.8, Fedora 19)

I cannot for the love of god figure out how to configure the screensaver to be run (which in turn causes the screen to be locked) every time I shut the lid of my laptop. I have xscreensaver installed ...
1
vote
1answer
245 views

Turn screen off when inactive for time period in RHEL and Debian

I want to turn the screen off when inactive for x minutes using commandline settings on RHEL and Debian distros of Linux. Any help? I have done this with the following commands on Ubuntu and Centos: ...
1
vote
1answer
520 views

Fluxbox shuts my screens off after some idle moment

I have fluxbox installed beside unity, my distro being ubuntu 13.04. Under unity I have configured my computer not to suspend, not to lock, and not to shut off screens after some idle moment. This ...
1
vote
1answer
233 views

How to install caffeine on Scientific Linux 6.3

caffeine Traceback (most recent call last): File "/usr/bin/caffeine", line 40, in <module> import caffeine File "/usr/lib64/python2.6/site-packages/caffeine/__init__.py", line 23, in ...
1
vote
0answers
9 views

Testing for an active window session

I'd like to run a cron job to test whether there is an active window session (GNOME or KDE) running on my host. By "active" I mean that in addition to just running, the user is "doing stuff". In ...
1
vote
0answers
35 views

Disable the Gnome screensaver from the command line

I would like to disable the screensaver on Centos 6.2 for a single user. I have tried from the GUI, that looked like the easiest way, but it didn't work out, I am not sure why. I am looking for an ...
1
vote
0answers
22 views

Screen blanks at login screen

On Linux Mint 17.1, the screen blanks when left idle. To stop this from happening, I have checked all the obvious candidates on the Power Settings and Login Window screens. Can anyone help me ...
1
vote
0answers
15 views

Xlock: Can't grab the keyboard

When I start Citrix Receiver in normal mode, screensaver of host machine get activated as per expectation. But when I connect the same session in Fullscreen mode then screensaver of host machine ...
1
vote
0answers
39 views

Make XServer ignore the mouseclick that woke up monitor from sleep

I have a ARM-Box with a touchscreen, running a Debian variant. Every time I tap the touchscreen, the monitor turns on, but the now visible application receives a mouse click. Can I tell the XServer ...
1
vote
0answers
116 views

“Screen Energy Saving” (in KDE) - how to trigger command when entering and exiting such mode?

I have two commands: one I'd like to execute when computer enters "Screen Energy Saving" mode, another when it exists this state. How to trigger those commands depending on "Screen Energy Saving" ...
1
vote
1answer
105 views

How to show time away from computer?

I was wondering how to measure the time elapsed after, say, screensaver starts and then show that time on a freedesktop notification when back.