Ubuntu 14.04 LTS on Dell inspiron 15 7000 series

subtitle: a lot of problems





ok, this is the page of the hardware configuration certification in ubuntu
http://www.ubuntu.com/certification/catalog/component/dmi/4755/dmi%3ADellSystemInspiron157000Series7537/


...but...

WI FI

when you finish the installation stage, u could have no wireless connection
due to problems with Intel wireless drivers

on the Dell pc you have this wireless card
Intel® Wireless 7265
Intel® Wireless 3165 (starting from firmware XX.XX.13.0 and kernel 4.1)

https://wireless.wiki.kernel.org/en/users/Drivers/iwlwifi


a solution is to use this trick:


First, verify that you have these two files; iwlwifi-7265D-13.ucode and iwlwifi-7265-13.ucode:

ls /lib/firmware | grep 7265

If so, we are going to make copies but rename them:

cd /lib/firmware
sudo cp iwlwifi-7265D-13.ucode  iwlwifi-3165-9.ucode
sudo cp iwlwifi-7265-13.ucode  iwlwifi-3165-13.ucode

FROM: http://askubuntu.com/questions/672700/how-can-i-install-intel-dual-band-wireless-ac-3165-drivers

This solution works for me.

Kernel 4.X

you could have problems with this kernel
in my case the nouveau drivers crash on startup 

FREEZING

sometimes the OS freezes,

I don't be sure that this is the solution...

If you have installed the Ubuntu distro on a PC with Microsoft Windows pre-installed maybe the fast startup settings could be put on the RAM some configuration files, then when you start linux it could be find a incoerent state...
 
try to disable the hybernate and sleep, and fast startup in windows OS


I tryed also to install other kernels or other versions of  ubuntu and mint, but I cannot have more than half an hour to spend in installations...