Debian Wheezy on Dell Latitude E7240

This laptop has actually been ubuntu certified and Dell has an ubuntu image at their website. Since I’m not really an Ubuntu fan and like to make stuff a bit complicated just because I want to have it the way I want it, I decided to go for Debian Wheezy (7.8).
At first, I was going with Freebsd 10.1 but since the wifi drivers has not yet been ported Stable from Openbsd and the FreeBSD port that exists only compiles in Freebsd 11 which is not stable and has shitloads of verbose messages spewn out by the OS all the time…so, maybe later.

So, here is a summary:


WIFI doesn’t work out of the box
The wifi chipset is Intel dual band wireless ac 7260, but a few sites suggest it also has a Intel Centrino Ultimate N 6300 in some editions.

For 7260 you have to download a newer kernel.


Almost works out the box but alsa sort of defaults to wrong sound card, rather confusing at first, but google foo says:

options snd_hda_codec_realtek index=1
options snd_hda_intel index


Not tested very thoroughly, but initially it seems to work good as intended.

Docking Station

Requires MST support in the kernel for multiple screens. I did some quick test by fetching liquorix-kernel but didn’t get it to work correctly (only mirrored screens). Didn’t spend much time trying though.