stefan's blag and stuff


  1. 2020-09-05: The Thinkpad X220 fan

    I own a Thinkpad X220 and the fan is sometimes annoying me. Even when the system is idle, a load average around 0.2 and the CPU is scaled down to the lowest frequency, the fan is spinning at a hearable noise.

    So I wondered whether it's possible to tune the cooling algorithm and software control the fan. Short answer: yes, it's possible.

    read more…
  2. 2020-03-28: Podcast Techtiefen - Git

    Ich durfte nun zum zweiten Mal Gast bei Nico sein und mit ihm einen Podcast aufnehmen. Diesmal zum Thema Versionskontrollsysteme und Git. Das Ergebnis könnt ihr hier anhören: Techtiefen - [Dev-Basics] Git

  3. 2019-03-31: inoTecCast - Linux

    Auf der letztjährigen inovex Weihnachtsfeier habe ich Nico kennengelernt. Er hat sein eigenes Podcastformat, die Techtiefen. Dort spricht er mit SofwareentwicklerInnen über aktuelle Technologien und Technik. Es geht um Security, Data Science, Cloud Technologien und Programmiersprachen. Nun hatte ich letztens die Möglichkeit mit Nico zusammen eine Folge aufzunehmen und ich durfte über Linux erzählen.

    Das Ergebnis könnt ihr hier nachhören: Techtiefen - 14 Linux.

    2020-07-24 Update: Links auf aktualisiert.

  4. 2018-02-10: Domain discontinued

    On Jan 19th, 2019 – in one year – we discontinue the domain After this date the domain, webpage and email is not under our control. We are not responsible for the content anymore.

    Currently – Feb 10th, 2018 – the webpage still hosts a simple webpage and javascript counter being a placeholder for an old drupal installation that a friend of mine and I hosted for our school and class mates. It was a lot of fun to create and build this website back in 2008/2009. Since our school days are already a long time ago we decided to cancel the domain contract for the domain

    If you want to see the simple webpage and counter after the domain contract has expired, you can visit I have reuploaded the html and javascript under a subdomain of so you and I look at the slowly but constantly increasing seconds since we left school and conquered the world.

    read more…
  5. 2017-09-15: Yocto Recipes vs Packages

    While working with the Yocto/OpenEmbedded build system on a daily base I have learned a lot about the inner workings and maybe have already hit any pitfall that it contains. But while debugging and digging through the source code, I have always learned something new and have understood more of the magic.

    Since I didn't found any good explanation about the differences between recipes and packages, which is fundamental in the build system, here is my explanation: There is a nice to read blogpost More on Yocto Terminology – recipes and packages by Christopher Hallinan posted 2012, I found yesterday. Infact it was not hard to find. I you want to read another explanation, here it comes:

    read more…