Archive for February, 2012

note to myself: compiling qt and installing as local user

February 27, 2012

I’ve decided to build kde4 trunk on my computer again. For this, one of the first steps was to get qt 4.8 running. As the debian repositories only contained qt 4.6, I had to build and instal qt for myself. I created a user named “kdedev” and a build and src directory in his home directory.

  • get the QT sources and place it under /home/kdedev/src :  git clone git://
  • Change into the result qt directory and configure qt: .configure -no-phonon -prefix <where/I/install/Qt>
  • make
  • make install

voila, you have your working qt trunk installed in the home directory of a local user account…

Samsung Series 9 NP900X3A wireless Problems

February 12, 2012

After installing Ubuntu on my new Samsung Series 9 NP900X3A notebook, I was having massive problems with my wireless connection. The problem was, that the speed of the wireless connection was changing from full speed to transmitting nothing at all. After quite some googling and researching on the web, I found the solution.

gedit /etc/modprobe.d/iwlagn.conf
and add the line:
options iwlagn 11n_disable=1

The wireless controller is from intel… after all, I’m quite happy with the new notebook…