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- Content .- Fans (15) . 



KDE Screensaver

Score 87%


Link:  Link
Minimum required   KDE 4.x
Downloads:  16534
Submitted:  Aug 21 2008
Updated:  Jul 30 2010


KCometen4 is an OpenGL KDE screensaver. Inside a box is a nifty light show that features lightning and exploding comets. It lets you configure various effects like comet behavior, camera movement, box face images, etc.


Version 1.0.8
* Remove legacy configure script.
* Fix a few compiler warnings and an error that prevented compilation with clang.

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 by yankee495 on: Dec 25 2013
Score 50%

Hello all,

This is a hack and will be over written by an update to KDE but it is easy and it works so you can just fix it again after an update.

1. Install scrot (it takes screenshots)

2. Make a text file called kscreenlocker_greet and put this in it:


scrot /tmp/ss-kcometen4.png

Right click it and do properties and check mark executable etc.

3. Go to /lib64/kde4/libexec and rename kscreenlocker_greet to kscreenlocker_greet.bin

This is for a 64 bit system. On 32 bit I think it will be in /lib/kde4/libexec . Whatever the case it will be where ever you find the original kscreenlocker_greet file.

4. Copy your new kscreenlocker_greet script file to /lib64/kde4/libexec or where ever you found the original.

5. Goto Kcometen4 settings and on the background tab select image source "File", and select the file /tmp/ss-kcometen4.png

I had trouble because this file didn't exist and typing it in didn't work, it wouldn't keep the setting. If you let the computer cycle

the screenlocker one time the file will exist and then you can change the setting. I use a Ramdisk for my tmp foler so it is empty at boot.

You can use any folder you want to store the screenshot like your home folder. You change that in this part of the script

Like this, where the script says "scrot /tmp/ss-kcometen4.png", you can make it /where ever you want/anywhere/ss-kcometen4.png

and just set Kcomenten4 to use the image path /where ever you want/anywhere/ss-kcometen4.png


It takes a screenshot, and then KDE does its thing and blanks the display, displays the login on your screen saver etc.

But then Kcometen4 grabs and displays the screenshot that was just taken, before KDE wiped the screen and displayed the login!!!

You end up with your desktop as your screen saver as intended but you have to hit ESC to exit, and unlock the screen.

KDE 4.10.2 does this no matter what. I don't know how higher versions of KDE do this.

I admit it is a nasty little hack but it works. Until someone comes up with something better it will do for me.

It still displays the mouse pointer too as that is in the KDE code. If an update kills it,

rename the original again and put your script back. They don't update very often.

My cat walks on my keyboard and deletes stuff so locking the screen is a good deal for me!!!

If you don't use a password to login, you just hit ESC, and then click Unlock.

My cat can't do that!

By the way, I've been using Kcometen for my screen saver since 2006 or 2007...way back. Love it!

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 by yankee495 on: Dec 25 2013
Score 50%

I forgot. You can double click the script to test it or copy it to the desktop to use as a screen lock!

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 Easy Fix For Blank Background!

 by yankee495 on: Feb 21 2016
Score 50%


I posted a fix which did work but doesn't anymore.
I like this screensaver so much I have not only figured out how to fix it but it's much easier.


1. Install scrot (it takes screenshots)

2. Create this simple script and put it wherever you want. Name it whatever you want.


scrot /tmp/ss-kcometen4.png

3. Run that script and make sure the screen shot has been created, you'll need it in the next step. You can put the screen shot in any directory, I used /tmp.

4. Go to the setup for Kcometen4 and click the Background tab. Select file and browse to the screen shot png, not the script. Typing in the path doesn't work here, it just doesn't save it. You must browse to it.

5. Go to System Settings and then Application and System Notifications > Manage Notifications. In the drop down Event Source box select Screen saver.

6. Click on The screen has been locked and check Run Command and browse to your scrot script.

That is it. When the screen locker kicks in it will take a screen shot then Kcometen4 will load that screen shot and use it for the background.

Kcometen4 will run with a blank screen without this which for many may be fine, but if you want it to look like it was intended then this works!

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 Re: Easy Fix For Blank Background!

 by yankee495 on: Feb 21 2016
Score 50%

Note: This should not be over written by updates like the old way that doesn't work anymore. I'm using KDE 4.14 and do not know if it works in Plasma 5.

Please reply here if you test that. KDE decided that having a screen shot displayed was a security risk. Around here I don't leave bank accounts displayed, ever, so all it can display is junk I'm looking at or doing. Keep that in mind if you often leave your computer with private information on the screen.

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