Note: I tried 4.4-rc7 and it's the same thing, suspend fails, maybe there is some improvement in graphics (fonts are correctly renderized in some cases they weren't before). To try it for yourself just install from http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4-rc7-wily/ (sudo dpkg -i linux-*)
Wifi works, bluetooth works, suspend sometimes works*, audio works (with headphones too), battery life reports 7h on 100% (haven't tested it enough).
*Once I went back from suspend and wifi and sound stopped working, so I wouldn't consider it totally stable. Althought is the best I could make it work.
The .tar.gz contains:
-rw-r--r-- 1 sampfeiffer users 7.4K Dec 23 14:59 BCM-0a5c-6412.hcd
-rw-r--r-- 1 sampfeiffer users 612K Dec 23 14:59 brcmfmac4350-pcie.bin
-rw-r----- 1 sampfeiffer users 2.2M Dec 22 15:00 gparted_0.24.0-1-getdeb1_amd64.deb
-rwxr-xr-x 1 sampfeiffer users 1.2K Dec 23 16:17 install_kernel4.4_with_wifi_and_nvme.bash
-rw-r--r-- 1 sampfeiffer users 9.3M Dec 23 15:00 linux-headers-4.4.0-040400rc6_4.4.0-040400rc6.201512202030_all.deb
-rw-r--r-- 1 sampfeiffer users 755K Dec 23 15:00 linux-headers-4.4.0-040400rc6-generic_4.4.0-040400rc6.201512202030_amd64.deb
-rw-r--r-- 1 sampfeiffer users 54M Dec 23 15:00 linux-image-4.4.0-040400rc6-generic_4.4.0-040400rc6.201512202030_amd64.deb
The install script contains:
#!/bin/bash
# kernel 4.4-rc6 precompiled got from
# wget \
# kernel.ubuntu.com/~kernel-ppa/mainline/v4.4-rc6-wily/linux-headers-4.4.0-040400rc6_4.4.0-040400rc6.201512202030_all.deb \
# http://kernel.ubuntu.com/%7Ekernel-ppa/mainline/v4.4-rc6-wily/linux-headers-4.4.0-040400rc6-generic_4.4.0-040400rc6.201512202030_amd64.deb \
# http://kernel.ubuntu.com/%7Ekernel-ppa/mainline/v4.4-rc6-wily/linux-image-4.4.0-040400rc6-generic_4.4.0-040400rc6.201512202030_amd64.deb
# Driver for bcm4350 from http://secretundergroundla.ir/wifi-on-xps-13-9350-with-ubuntu-15-10/
# Install linux 4.4-rc6 kernel
echo "Installing kernel 4.4-rc6"
sudo dpkg -i linux-headers-* linux-image*
# Install BCM4350 driver
echo "Installing BCM4350 driver"
sudo chown root:root brcmfmac4350-pcie.bin BCM-0a5c-6412.hcd
sudo cp BCM-0a5c-6412.hcd brcmfmac4350-pcie.bin /lib/firmware/brcm/
# Add initramfs rules to load i915 and nvme drivers (or system won't start)
echo "Adding initramfs rules to load i915 (graphics) and nvme (SSD)"
sudo bash -c "echo 'i915
nvme' >> /etc/initramfs-tools/modules"
sudo update-initramfs -u -k all
echo "Done, now you can reboot (maybe you'll need to do it twice)".Go to the BIOS (press F12 on boot) > BIOS Setup
On General > Boot Sequence > Boot List Option
I have UEFI
On System Configuration > SATA Operation
AHCI
This is necessary or ubuntu won't recognize the NVME disk
On Secure Boot > Secure Boot Enable
Disabled
POST Behaviour > FastBoot
Thorough
Official ISO Image: http://www.ubuntu.com/download/desktop Unetbootin: https://unetbootin.github.io/
https://github.com/awesomebytes/ubuntu14_dell_xps13_9350/raw/master/kernel_v4.4-rc6_with_wifi.tar.gz You can also download this repo to have the instructions downloaded too: https://github.com/awesomebytes/ubuntu14_dell_xps13_9350/archive/master.zip
It has gparted 0.24 that you will need in the live cd to be able to install the system. It also has kernel 4.4-rc6 and the bcm driver and a script to install all that.
Press F12 on boot and Choose:
UEFI BOOT > UEFI: YOURPENDRIVE BRAND
In my case:
UEFI BOOT > UEFI: KingstonDT microDuo 3.0 PMAP, Partition 1
(Note that a SanDisk pendrive always failed to boot the ubuntu livecd for some reason) Note that the livecd sometimes didn't boot at the first try (black screen) there is some problem with the graphic driver.
Open a shell (control+alt+T)
cd /cdrom
cp kernel_v4.4-rc6_with_wifi.tar.gz /home/ubuntu
cd /home/ubuntu
tar xvfz kernel_v4.4-rc6_with_wifi.tar.gz
cd kernel_v4.4-rc6_with_wifi
sudo dpkg -i gparted_0.24.0-1-getdeb1_amd64.deb
Click on the Install Ubuntu 14.04.03 LTS icon.
Configure as you like BUT DON'T ENABLE DOWNLOAD UPDATES WHILE INSTALLING NOR INSTALL THIRD PARTY SOFTWARE. It will freeze your installation. If you don't believe me, just try and happy reboot.
I Shrinked the Windows 10 partition on Windows 10 (Going to my computer > right click > Manage > Disk Manager, choose to shrink, I left it to 100GB). It is very recommendable that you do that from there, don't resize from Gparted. If you changed to AHCI SATA mode, you'll need to change back to RAID to boot Windows 10 to do this. Sorry!
I gave it 100GB for / and 200GB for /home, 100GB extra for testing pourposes as ext4 and the rest, 8GB, for swap.
If when continuing you get an error of choosing a boot partition, you didn't boot in UEFI Mode, you used Legacy. Bad doggy. Read again my instructions.
From a USB 3.0 (on the right port of the laptop, it shouldn't matter) to the SSD disk it took approximately 3 minutes to install the system.
Open a terminal (control+alt+t) Go to your pendrive
cd /media/<youruser>/<yourpendrivename>
cp kernel_v4.4-rc6_with_wifi.tar.gz ~
tar xvfz kernel_v4.4-rc6_with_wifi.tar.gz
cd kernel_v4.4-rc6_with_wifi
chmod +x install_kernel4.4_with_wifi_and_nvme.bash
./install_kernel4.4_with_wifi_and_nvme.bash
Reboot and you have wifi.
Sometimes I get a black screen on boot, to fix that follow these instructions to add nomodeset to the boot command: http://askubuntu.com/questions/38780/how-do-i-set-nomodeset-after-ive-already-installed-ubuntu/38782#38782
Sometimes there are graphical artifacts, but after installing gnome-session-flashback (I don't like unity) they don't appear anymore (login with Metacity).
To gain back windows access without changing the SATA mode every time I found this link: http://www.tenforums.com/performance-maintenance/15006-attn-ssd-owners-enabling-ahci-mode-after-windows-10-installation.html
Which I haven't tested yet.