xplanetFX renders high quality wallpapers of mother earth on your desktop. An extensive GUI (GTK) provides a lot of features and settings. Various templates place the planet inside different scenes and make shure your desktop never gets boring again. With realtime light, shadows and clouds!

traGtor is a graphical user interface for the awesome conversion tool ffmpeg. With multi streams, presets, multi language and a lot of other features traGtor is a handy tool for converting all audio and video formats through ffmpeg. traGtor is based on GTK and Python.

Calf studiogear is an extensive and high quality plugin pack for professional audio production under Linux. It provides a lot of synthesizers, effects and signal processing for the use with LV2 audio production suites (like Ardour) or as stand-alone through JACK.

Calf with all of its new features and processors isn't officially released by now so you have to grab the GIT-repository from sourceforge.net until we are ready for a stable release.

» calf.sourceforge.net

guess is a tool to launch (and kill) different setups of programs. It was invented to startup all needed synthesizers, audio suites, MIDI sequencers and stuff with the correct source files on the right desktop for a single audio production with just one click.

xplanetFX - series: Mit xplanetFX ganze Bilderserien erstellen

oRainge Theme: GTK-, GDM-, Metacity-, Icons-Theme

oRainge gDesklets: Sprechende Uhren, Kalender, System-Widgets (manual)

photogen:c SVG-Icons: Diverse High-Quality-Icons im SVG-Format

traffick: Serverumgebungen testen. Durch skalierbares Threading erzeugt traffick Unmengen an Suchanfragen und Webseitenaufrufen, um ein hohes Maß an Vorratsdaten Netzwerkauslastung zu simulieren.

GIMP Plug-In “Moderated Blur” for Tilt Shift and Depth-Of-Field Effects

stuff (de) guess calf traGtor xplanetFX

NEW! Giccler 0.1.0 (pre-alpha): Manually Calibrate Monitor Profiles in Realtime in Linux!

GicclerOnly a couple of weeks after purchasing a horrible plastic toy for a shitload of money from Lenovo called „W540“ (the adequate rant will follow on this blog soon) I have a usable display in Linux! And guess what – I had to write my own application to achieve it.

There are some color profiles around which are a lot better than the uncalibrated display which reminds of a 70’s porn with its overall yellow-greenish inking but doesn’t come close to a nicely calibrated color profile.

So all I needed was a tool to make some minor corrections to the VCGT ramps provided in those profiles – preferably in realtime. After some searching I had to realize that there’s no manual calibration application available in Linux (is there one for other OS? haven’t found any) so I decided to write my own one.

So here it is: Giccler 0.1.0

Initial features:

Version 0.1.0:
* Initial user interface
* Full interaction with ramp widgets
* Configurable gradient display
* Loading, applying and saving of profiles
* Realtime manipulation of active profile

It is as easy as it looks: Just drag those little handles at the end of the curves to change a previously loaded color profile in realtime. Add and remove handles by double-clicking and reset them to zero by middle click. Dragging them with a right click only changes the value of the handle, not its position on the x axis. The save button saves the new color profile to a file. If you disable auto apply use the apply button to load your changes into X.

Use those profiles

To use your generated (and saved) profile on boot just add „xcalib /path/to/file.icc“ to your auto-started programs.

How to get it?

There’s no manual or even a website for it by now. For now please follow the steps described here to activate my repository:


But instead of installing tragtor just install giccler.

Or download as DEB RPM TAR.GZ

Dependencies are: xcalib, python and python-gtk

What doesn’t work

This is pre-alpha.


  • You need an existing profile containing VCGT ramps which you can edit
  • Ramps look slightly crippled after saving. I’m working on it, for now it works for me at least
  • Editing profiles meta data like name or description

But since it was able to generate a usable profile for my display I decided to release this version into the wild.

Oh and I’m not shure if the package works and installs all neccessary dependencies. If not please drop me a line and install xcalib, python and python-gtk for the moment.

Features I’ll implement in the future:

  • Upsampling for better ramping with windowing for smoother interpolation
  • Bitrate enhancement for less „stairs“ (as far as X allows me to, have to test for the limits first)
  • Spline interpolation (only linear curves by now)
  • Creating new profiles from scratch
  • Overall gamma correction

But for the moment it offered me all features I nedded to get a linear and non-inked looking color reproduction on my display. And guess what – it seems that at least the display is worth its money now. After writing an application for it.

Bugs and requests

Until there’s a „regular“ website for this program please write bug reports and requests as comments under this article.

Please note!

I’ve tested it with a couple of profiles now but keep in mind that there’s no guarantee that everything works atm so please avoid overriding existing profiles by using the save button for which you don’t have any backups. I’ll recommend writing to new files until it went through further testing by the community.

  1. 2 comments on “NEW! Giccler 0.1.0 (pre-alpha): Manually Calibrate Monitor Profiles in Realtime in Linux!”

  2. rxon

    nice tool, thanks for this!

    – works fine in ubuntu 16.04
    – icm profiles from http://www.tftcentral.co.uk/articles/icc_profiles.htm load, icc profiles not (have tried several)

    I get either:

    Error - unsupported ramp size 0


    Traceback (most recent call last):
    File "/usr/share/giccler/giccler.py", line 338, in open_cb
    File "/usr/share/giccler/giccler.py", line 83, in load_profile
    self.profile = self.icc.open_profile(profile)
    File "/usr/share/giccler/icc.py", line 146, in open_profile
    self.data = self.parse_data()
    File "/usr/share/giccler/icc.py", line 307, in parse_data
    data[tags[tag]["signature"]] = self.parse_data_entry(tags[tag])
    File "/usr/share/giccler/icc.py", line 382, in parse_data_entry
    t = targs[int((pos - start) / (entries * length))]
    IndexError: tuple index out of range

  3. Markus Schmidt

    Hey rxon,

    thanks for the report!

    The first error is thrown by X, sorry but I can’t do anything about it. After an update of X some time ago all giccler-generated profiles didn’t work anymore (throwing the same error) but I was able to fix it. So it looks like X can’t make any use of those profiles.

    The second one is a bug within giccler. I took a short look but wasn’t able to fix it in a blink. Since I’m quite busy atm this one has to wait at least until next week.


Write a comment / Schreibe einen Kommentar (NEW! Giccler 0.1.0 (pre-alpha): Manually Calibrate Monitor Profiles in Realtime in Linux!)

Please note that comments are moderated and don't appear immediately. If you're reporting a problem or a bug I'll publish them when I started processing your request.

Bitte beachte: Kommentare sind moderiert und erscheinen nicht sofort. Ich veröffentliche Bugreports und Hilferequests erst, sobald ich mich eines Problems oder Bugs angenommen habe.

You're reporting a bug? click here!

Thank you very much!! You're doing an essential job for the development of open source software! The following points aren't meant as dogmas but as a clue, decide for yourself what you think could be useful in troubleshooting.

  • Please...
  • ...state name and version of your operating system / desktop environment
  • ...state the version of the program you're using
  • ...be detailed in what is happening and what you expected to happen
  • ...try to provide some deeper information (like xplanetFX logs or the output of the program when started in a terminal window)
  • ...speak to me as a human being, don't think I'm a bot.

Du möchtest einen Fehler melden? klick hier!

Herzlichen Dank!! Fehlerberichte sind essentiell für die Entwicklung von Open-Source-Software! Die folgenden Punkte sind keine Dogmen, sondern sollen eher Anhaltspunkte darstellen; entscheide selbst, ob sie für die Fehlersuche hilfreich sein könnten.

  • Bitte...
  • ...nenne den Namen und die Version Deines Betriebssystems / Deiner Desktopumgebung
  • ...nenne die Version des von Dir benutzten Programms
  • ...beschreibe möglichst genau, was passiert und was Du erwartest, was passieren sollte
  • ...stelle möglichst tiefergehende Informationen zur Verfügung (xplanetFX Logs oder die Ausgabe des Programms im Terminalfenster)
  • ...sprich mit mir, wie mit einem Menschen, ich bin kein Automat.

XHTML: You can use these tags: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>