Category Archives: Tech Geek Stuff

Power Cosumption – Intel Based Laptops

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With the Teclast F5 (same hardware: BMAX Y11) being my portable little workstation I try to maximize battery life under Linux as much as I can and while doing that try to figure out which are high consumers and how to bring these down. One of the very first things I found useful was to run powertop and going to… Read more »

USB Type-C – Heartbeat Moments

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Do you know that feeling when a device you really care about, that you put a lot of effort into and that you love suddenly starts to misbehave? That it actually feels broken? And that you have admit that this fail has probably something to do with what you did last? When something like this happens my blood pressure rises,… Read more »

Teclast F5 – Update

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Some time ago I wrote a review of my experiences with the Teclast F5 11.6″ slim laptop and Linux. I am still a fan of this low cost but super slim and light weight laptop. It offers everything I need as an ultra mobile laptop for travel – 8GB RAM, M.2 SATA SSD slot, full-HD display and even touch. It… Read more »

GNOME Foundation faces software patent lawsuit!

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Just today it came to my attention that the GNOME Foundation, a non-profit free software governing foundation, has been approached by what seems to be a patent troll trying to squeeze money out of the non for profit GNOME foundation over a patent, which can only be laughed at. Here is the information that the GNOME foundation gave: https://www.gnome.org/news/2019/09/gnome-foundation-facing-lawsuit-from-rothschild-patent-imaging/ Looking… Read more »

Kernel update for Marvell Kirkwood TK71 board

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After some silence and in preparation for CCC Camp 2019 where I want to use this board as small FTP server I updated the kernel a bit to 3.16.72 (LTS), information here: https://www.warpcomm.org/ and patch here: https://www.warpcomm.org/downloads/tk71/20190815/linux-3.16.72-tk71.patch Maybe some time in the future I’ll forward port the stuff to 4.x or 5.x but this is a bit more effort since… Read more »

Shortlisted CTO Of The Year 2019 – Women in IT Awards Europe

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With great honor and pride I can announce that I have been shortlisted as CTO of the year 2019 of the Women in IT Awards Europe. This is very important to me in several ways. First of course an award like this shows the recognition of the importance of women in IT in general and the category CTO in special… Read more »

China 40W Laser Cutter / Engraver – You get what you pay for :-)

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So, this is the latest addition to my workshop, a _really_ cheap 40W CO2 laser cutter / engraver I got new from eBay for 315EUR – including shipping! For that price you can not expect miracles. Why I did it anyway, being perfectly aware of the possible issues, was that I wanted to play around with laser cutting and especially… Read more »

Teclast F5 – 11.6″ Laptop & Linux

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Last week I was in Hong Kong and shopped a bit for electronics. I love small laptops since I am traveling quite a bit lately and don’t want to carry around too much weight and bulky luggage but still want to be able to do the basic things – some programming, office, web browsing. The current 13″ laptops are already… Read more »

CNC free software – resurrection of legacy mill

Back in the days when PCB making was expensive I started to look at ways to do that on my own. There were basically two: photo lithography and etching or milling. I did not like the idea of having to handle the nasty chemicals for etching so I first decided to get myself a CNC milling machine. Later on I… Read more »

Guerilla Photovoltaik

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Nachdem die Einspeisevergütung für Photovoltaik (PV) Anlagen enorm gesunken sind, lohnt sich dies eigentlich gar nicht mehr. Der Strompreis für Verbrauchsstrom ist allerdings nach wie vor hoch und sogar noch gestiegen, um die 0,30€ pro kWh brutto. Stromverbrauch zu senken ist eine Methode die Energiekosten zu reduzieren. Wer eine freie Fläche von ein paar Quadratmetern mit Blick in Richtung Süden… Read more »