Blanking of the screen or filling with moving images when computer not in use.

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4
votes
1answer
201 views

Long passphrase for login and short password for screensaver

The situation is that: For the encrypted home directory, any passphrase less than 10 characters is useless at all. If someone physically get the harddisk, the data and the other sensitive password ...
3
votes
1answer
505 views

Monitor not turning off when screen saver is on

I installed Ubuntu for the first time 3 weeks ago and I really love it. I have Ubuntu 12.04. My only problem is that when screen saver is on, it just shows blank screen, and not turning off the ...
2
votes
1answer
156 views

ctrl+alt+l not activating screensaver

When I first installed Ubuntu 14.04 the keyboard shortcut Ctrl+Alt+L would activate the screensaver. Now, after I had to do a reinstall that shortcut locks the account and goes to lock screen. Super+L ...
2
votes
1answer
309 views

Is watching a video on HDD using VLC, or a youtube video in a browser considered as 'computer idle'?

I have Ubuntu 11.04 (natty). I have read 'Screen goes blank when VLC is playing video'. My question is similar, but also I have this problem when viewing a video on youtube. I am not quite clear ...
3
votes
0answers
5k views

The XScreenSaver daemon doesn't seem to be running on “:0”

Since in Ubuntu 12.04 there weren't integrated screen savers (btw, why?), I looked for a tutorial online and installed XScreensaver 5.15. The problem is that it won't start the sccreen savers until I'...
3
votes
0answers
422 views

Xubuntu: How can I avoid the double-password entry (lightdm then xscreensaver) on user switching?

I'm running Xubuntu raring with lightdm and xscreensaver. Both users on the system have xscreensaver set to lock the screen after n minutes. However, when I click "switch user" (or do gdmflexiserver --...
2
votes
0answers
570 views

Lubuntu Light Locker settings incorreectly starts power saving mode

In Lubuntu 14.04 64-bit on a desktop computer, my monitor goes to power saving mode almost immediately after the blank screen has appeared, regardless of the Light Locker settings. I do not want the ...
2
votes
0answers
274 views

lock/unlock events for in C++ app which should not depend on screen savers

We have a product, which was developed for Windows. Because of customer request we are developing it for Linux also. So being a beginner to Linux, have migrated most of it (which I loved it). Now got ...
2
votes
0answers
546 views

ubuntu 14.04 64bit and vlc 2.1.4 screensaver keeps coming on

Greets All I have ubuntu 14.04 64bit running vlc 2.1.4, using unity desktop and xscreensaver installed from the software center. (Gnome screen-saver is not installed.) Whenever I play a video in ...
2
votes
0answers
119 views

How to temporarily disable Xfce monitor power off via bash

I have set up my monitor to go off after some minutes of inactivity, but when watching an internet stream in a browser this is unwanted, thus I'd like to have bash command that to disable (and later ...
2
votes
0answers
554 views

Display date/time in Ubuntu lock screen (cinnamon-like)

I was using Ubuntu 13.04 till a few days ago. I had installed Nemo and I guess cinnamon got installed too (I was still using Unity nonetheless). One of the good things about that was the lock screen ...
2
votes
0answers
118 views

Forcing screensaver lockout time for all users in Unity

I am using Ubuntu 12.04 and Unity. Is there a way to force the screensaver lockout time using an admin account? By default each user can change their lockout time. I need to be able to prevent this....
2
votes
0answers
255 views

How can I configure the screensaver and energy-management options separately for two screens?

Background I have finally managed to use twinview with a TFT(1440x900@60Hz) and a TV(PAL,1024x576@50Hz) on nvidia (proprietary driver), configuring xorg.conf manually. I had to do this manually since ...
1
vote
0answers
34 views

Why wireless network list become unavailable after screensaver activity?

Every time I resume my work after a screensaver, the wireless network list becomes unavailable. No listing at all. Wireless connection is activated all the way. What baffles me is that I can web ...
1
vote
0answers
94 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 ...
1
vote
0answers
73 views

How can I turn off the screen saver?

I want my physical monitor to turn off (standby mode) after some minutes. I do not want to run any fancy idle graphics on the display - just show my apps or desktop, then simply turn OFF. Just off. ...
1
vote
0answers
39 views

14.04 - screen not locking?

running 14.04.3 with unity. Since some days, occasionally my screen will not blank and lock; although "brightness and lock" is configured to exactly do that after 3 minutes. I checked for answers ...
1
vote
0answers
193 views

Subscribe for DBUS event of screen power off

My MacBook Pro has a keyboard backlight which is pretty awesome, but there's a slight bug: the screen turns off after a given amount of time, but the keyboard backlight stays on. I've copied over ...
1
vote
0answers
77 views

KDE lock screen appears when in Google Hangout

How can I disable the KDE lock screen from automatically appearing, but only when I am in a Google Hangout (in Chrome)?
1
vote
0answers
45 views

How do I stop my screensaver from darkening and pausing? It happens frequently and I need to stop this

My screen keeps dimming and while it is dimmed, it pauses for a few minutes and this happens very frequently. I have gone into settings in the desktop and screensaver, but this does no good. I have ...
1
vote
0answers
50 views

New desktop dies when starting OpenGL screensavers

I got some new screensavers (sudo apt-get install xscreensaver xscreensaver-gl-extra xscreensaver-data-extra) and it had some nice OpenGL screensavers on it. When I start some of them (one of them is ...
1
vote
0answers
86 views

Screensavers not showing up in xscreensaver list

I recently switched to xscreensaver in 14.10 and it's running just fine. Except when I added the gluqlo screensaver, it just refuses to show up in the xscreensaver panel. Might I have missed a step ...
1
vote
0answers
81 views

Ubuntu 14.04 screen lock policy

We have a security policy that the Ubuntu desktops have to lock the screen after 10 minutes.I use to use xscreensaver on Ubuntu 12.04 for this by removing gnome-screensaver and overwriting the config ...
1
vote
0answers
460 views

Confused about Light Locker/Power Manager settings in Xubuntu 14.04

In Xubuntu 14.04, Light Locker and Power Manager settings are different control panel views, however, there are screensaver settings inside Light Locker's one. Anyway, there's no screensaver options ...
1
vote
0answers
191 views

Need to run xscreensaver in ONE of the TWO monitors in a multihead setup - Ubuntu 12.04

I have a multihead setup with two monitors, running Ubuntu 12.04. How to make xscreensaver run in one monitor. Need only one of the following lines present, on invoking xscreensaver. xscreensaver: ...
1
vote
0answers
100 views

tv connected, laptop monitor should turn off

Have HP nvidia 7400M gpu laptop with VGA connected to sony TV. Have been using ubuntu with my Sony LCD for 4 years. Earlier in 2011-12 the screensaver would run on the monitor and switch it off even ...
1
vote
0answers
808 views

Disable lock screensaver

The latest update for 14.04 changed the lock screen behaviour. For a while during development of 14.04, the lock screen would not run the screensaver - just lock the screen. The following links to ...
1
vote
0answers
43 views

Start screensaver on still pictures

I have an Ubuntu box connected to a plasma TV. Still images reduce the lifetime of plasma TVs and may cause pixel-burn. I am looking for a technique to start the screensaver if the picture on the ...
0
votes
0answers
14 views

Severe graphic artifacts on screen after screensaver!

Note: I tried to use descriptive language, but because I'm uncertain of the problem's underlying details, I'm not necessarily able to use the most accurate and descriptive language. Often, when I ...
0
votes
0answers
17 views

How can I configure my x-server, that gamepad input prevents screen locking?

The problem is, that if I play with my gamepad (on zsnes which by the way should not matter), I get interrupted by the screenlock after some time, because the input in not coming from the mouse or ...
0
votes
0answers
36 views

NetworkManager, unknown authentication passwords, and XScreenSaver 5.15

I used to use a laptop running Xubuntu, but then got a new one. It's been a year or so since I booted it back up and this is what I noticed. It's been so long I cant remember what it is so I tried ...
0
votes
0answers
19 views

Screen goes blank after returning from screensaver

I just started having this problem where the screen goes blank when I dismiss XScreenSaver. I can still see and move the mouse cursor but no other GUI is visible. It's all blank. Ctrl-alt-del does ...
0
votes
0answers
23 views

Cannot turn off screensaver

Just installed 16.04 with MATE. Although I can turn off the settings on the MATE "Screensaver", they just don't turn off. I have to put in my password to get it going again. Using xdg-screensaver ...
0
votes
0answers
27 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 ...
0
votes
0answers
23 views

Cannot login, xscreensaver not loading

I use a BackBox/Ubuntu system and it had xfce and xscreensaver login screen when booting. Days ago I was testing shortcut keys trying to logout using keyboard, and pressed CTRL and Fn Thinkpad key ...
0
votes
0answers
7 views

How do I interact with the session media bus?

I've written a screensaver/screenlock. I hate the defaults and xsaver just wasn't doing it for me so I built one from scratch. I've got the time, random pictures from the web, a nice little warning ...
0
votes
0answers
47 views

Ubuntu 12.04 and 14.04 both freeze except you can still use keyboard and mouse

After a period of time which seems to be the same every time (although i have not timed it) everything on the desktop freezes, except for the keyboard and mouse. I tried disabling everything in the ...
0
votes
0answers
21 views

trigger motion with dbus scrensaver event

I'm looking for a bash scrip to trigger motion when screensaver turns on and stops motion when screensaver turns off. I'm using Trusty Tar KDE on an Aspire E1-510. My linux programming skills are ...
0
votes
0answers
172 views

Replace Xscreensaver with i3lock

I was wondering if it is possible to replace Xscreensaver with i3lock. Today I am using i3lock which bluring my screen when it's locked but I want to use it as Xscreensaver, is this possible? Here is ...
0
votes
0answers
34 views

Why does Xubuntu asks for my password twice when it wakes up from the blank screen?

Every time Xubuntu wakes up from the blank screen it asks for my password and then, after I enter it, it asks for it again. This doesn't happen if I lock the screen manually. How can this be fixed?
0
votes
0answers
41 views

HDMI not reinitializing after disconnecting in 14.04LTS

When receiver switches HDMI inputs from the Ubuntu 14.04 LTS system to something else and back the HDMI output goes blank/off and won't reinitialize. The only way to get video back is to reboot the ...
0
votes
0answers
61 views

enforce screen locking to all users

On Ubuntu 14.04 and XFCE desktop environment, how can I disable all animated screensavers and enforce to all users automatic screen locking after a given time of inactivity with password request on ...
0
votes
0answers
64 views

Display not recognised after switching off and back on

Sometimes, when I am away from my computer for a while, I like to switch off my monitor, because I feel it does not need to be active and waste energy for nothing. I have usually done this without a ...
0
votes
0answers
85 views

Ubuntu 14.04 use xscreensaver on lockscreen command

Most people probably no longer worry about screensavers, let alone xscreensaver, however I am still very much a fan of the package. I've installed xscreensaver and have it starting up with -nosplash ...
0
votes
0answers
31 views

gubuntu 14 screensaver kerberos

It seems gubuntu 14.04.3 default screensaver don't renew the kerberos afs token. I've created the file /etc/pam.d/gnome-screensaver with: @include common-auth auth optional pam_gnome_keyring....
0
votes
0answers
88 views

screensaver show randomly picture from folder as in windows

My question is exactely the same as this one except the answer doesn't work it juste pick an image from the folder and display it. Is there a way to juste like windows set a folder and set the ...
0
votes
0answers
178 views

How to get XScreenSaver to lock screen on wakeup on GNOME?

I am wanting the same thing as I did here XScreenSaver Lock Screen, except for now that I am running Ubuntu GNOME 15.04, with GNOME Shell, and GNOME 3.16, things are slightly different, as the answer ...
0
votes
0answers
202 views

Screensaver issues using KDE Plasma Workspace on Ubuntu 14.04

I'm fairly new to Linux/Ubuntu, replaced Win XP with it and LOVE it. I am having an issue with screensaver on KDE Plasma Workspace. I initially installed Ubuntu 14.04 with a Lubuntu desktop and after ...
0
votes
0answers
41 views

Screen goes black when i'm playing games on Xubuntu

When I'm playing games the screen goes black and if I move my mouse it goes back to normal. I already i already set light locker to 60 minutes but the screen turn black in much less time.
0
votes
0answers
43 views

14.04 Screen does not recover after blanking

I have installed ubuntu 14.04 on a computer with an NVIDIA Quadro K2200 GPU running the nvidia-331 driver, driving a 4K UHD screen. I have set nomodeset in /etc/default/grub to be able to use the ttys....