I recently installed Ubuntu 14.04 on my Dell XPS 15 9530.
Now, everything except the wireless connection works fine. I've googled, and found this solution, but it didn't change anything for me (i.e. I added "options iwlwifi 11n_disable=1" to "/etc/modprobe.d/iwlwifi.conf").
I'm not sure what next steps I should take to solve this problem. I've read somewhere that updating the kernel might help I ran the command "uname -r" and got "3.13.0-24-generic" back, which implies i have the kernel version 3.13 and not the newest 3.18 according to this.
If anyone has an idea what to try next or can point me somewhere, that would be awesome.