Wifi problems with Ideapad S10-3t

Posted: 9th October 2014 by knoppi in Computer Stuff, Linux

I just encountered severe problems with the wireless card on my Lenovo IdeaPad S10-3t. While my netbook connected to the access point I could not use the connection in the common sense, so not even a ping within my network arrived.
While playing around a bit, trying to understand which kernel modules are installed and how they were built, I encountered that the recent update to Kubuntu Trusty Tahr also installed new drivers. Maybe this problem doesn’t exist for a fresh install but only with the update. Who knows…

I found the solution on http://askubuntu.com/questions/55868/installing-broadcom-wireless-drivers.
The surprinsingly simple solution for my specific hardware (I have a Broadcom BCM414 with the PCI id 14e4:4727) is to remove the bcmwl-kernel-source package and just use the drivers shipped with the linux-firmware package.

Now Wifi works again, but my netbook is complaining about having found proprietary drivers which might be required to grant access to all my hardware’s functions. I will find a solution to get rid of this message.

Today I try out OpenSlides (Link). It is an open-source agenda-organizing-displaying-voting-whatever tool which might come in handy from time to time. As usual, for all the information about OpenSlides go to their page, here is the usual mnemonic which can help you in some way. So you wanna know what I actually did? Read the rest of this entry »

Never change a running system…

Posted: 8th January 2014 by knoppi in Computer Stuff, Linux, Software

… but if it’s not running you should change as soon as possible!

I am just reinstallung my beloved Kubuntu on my desktop PC. I’m kind of sorry for the nice Chakra linux which has to go, but productive work was not possible anymore. From week to week more and more programs ceased to work as I was expecting them to work.
I really liked Chakra in the beginning. But the descent began with LiquidWar 6 not working anymore. LiquigWar 6 was one of the major advantages in comparison to other distributions where only LiquidWar 5 was available. Unfortunately, some package changed version and so liquidwar 6 did not compile anymore.

Anyhow, it is just a game and as I’m currently writing up my PhD thesis I shouldn’t play anyway. Problems started when my productive tools (in particular ipe, a vector drawing programm and to some extent python-mytplotlib) were acting strangely.

So, while now Kubuntu 13.10 is being installed, I just want to let you know that sticking with boring distributions is really better if you want to do productive work. Maybe in the future I’ll reinstall Chakra again. Without the obstacle of a thesis that needs to be finished rather yesterday than tomorrow it could be more fun. But it is a kind of distribution that really requires you to participate in its development, with a comparably small community and a problem of unstability that is most likely very common for rolling-release distributions…

Gradients in IPE

Posted: 22nd March 2013 by knoppi in Computer Stuff, Software
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I was just trying to understand, how in IPE areas can be filled with a gradient. On the IPE Wiki you can find examples, however no documentation or comments. Read the rest of this entry »

OpenWRT USB storage

Posted: 25th January 2013 by knoppi in Computer Stuff, Hardware, Linux
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This is a continuation of my last post OpenWRT on TP-Link WDR3600. It deals with the use of my TP-Link WDR3600 as a central file server. Read the rest of this entry »

OpenWRT on TP-Link WDR3600

Posted: 22nd January 2013 by knoppi in Computer Stuff, Hardware, Linux
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For the history leading to this post, read TP-Link WDR3600: Router! Print-Server? and TP-Link WDR3600 – no information available.

After all the annoying information, I decided to change the firmware of my router. Read the rest of this entry »

TP-Link WDR3600 – no information available

Posted: 10th December 2012 by knoppi in Computer Stuff, Linux
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I just received (after several weeks) an answer from the TP-Link support. Read the rest of this entry »

Logging in Python

Posted: 28th November 2012 by knoppi in Computer Stuff, Programming
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I am an excessive user of the built-in logging facilities of Python. Most information about that topic can be found in the Python Logging Howto or in the description of the logging module. If you’re interested how I use it in my modules, just go on reading Read the rest of this entry »

Lenovo s10-3t

Posted: 15th November 2012 by knoppi in Computer Stuff, Hardware, Linux
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Some time ago I bought a Lenovo s10-3t netbook which has a capacitive touch-screen and thus should be able to understand multitouch. Additionally the lid can be rotated and the netbook can then be used as a (rather heavy) tablet. Seems like a nice toy! What I actually want to advertise is the possibility of installing Android on the s10-3t and how to make it comfortable to access the different operating systems, and I can give some insight into the interior of the netbook as I opened it just recently and took some pictures with my smartphone.
Read the rest of this entry »

Kerala 2004

Posted: 12th November 2012 by knoppi in Travelling
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In 2004 I took part in an educational journey to the Indian state Kerala. The trip was organised by the german teachers union GEW. Afterwards I built a small website with information about that journey and our pictures. Now, while reorganising all my websites I decided to drop the old website but to keep the pictures at the same time on this blog. I also kept the journal of the journey. I did not keep the links as they lost their validity. Read the rest of this entry »