Fix Ubuntu 18.10 on Dell XPS 9570

fix-ubuntu-18.10-on-dell-xps-9570

#
# Run this from the Live USB.
#

#############################
# EDIT YOUR PARTITIONS HERE #
#############################
root_partition=/dev/nvm0n1p2

sudo mount ${root_partition} /mnt

sudo mount --bind /dev /mnt/dev
sudo mount --bind /proc /mnt/proc
sudo mount --bind /sys /mnt/sys 
sudo mount --bind /usr/ /mnt/usr

# Enable internet on chroot
sudo ln -s /etc/resolv.conf /mnt/etc/resolv.conf

sudo chroot /mnt

#
# INSIDE THE CROOT
#

sudo apt update
sudo apt upgrade
sudo apt install intel-microcode
sudo apt install nvidia-driver-390

# UPDATE KERNEL
# http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D
cd /tmp
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.19-rc8/linux-headers-4.19.0-041900rc8_4.19.0-041900rc8.201810150631_all.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.19-rc8/linux-headers-4.19.0-041900rc8-generic_4.19.0-041900rc8.201810150631_amd64.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.19-rc8/linux-headers-4.19.0-041900rc8-lowlatency_4.19.0-041900rc8.201810150631_amd64.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.19-rc8/linux-image-unsigned-4.19.0-041900rc8-generic_4.19.0-041900rc8.201810150631_amd64.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.19-rc8/linux-image-unsigned-4.19.0-041900rc8-lowlatency_4.19.0-041900rc8.201810150631_amd64.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.19-rc8/linux-modules-4.19.0-041900rc8-generic_4.19.0-041900rc8.201810150631_amd64.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.19-rc8/linux-modules-4.19.0-041900rc8-lowlatency_4.19.0-041900rc8.201810150631_amd64.deb
dpkg -i *.deb

# FIX INTEL i915
echo "options i915 enable_psr=0" > /etc/modprobe.d/i915.conf 

exit
reboot

Notes:

1. My root partition was "/dev/nvme0n1p2", not "/dev/nvm0n1p2"
2. Had to follow https://unix.stackexchange.com/a/339621 in order to boot the root partition (I used LVM during install)
3. Had to copy "/etc/resolv.conf" instead of linking it since it already existed

You don't need to do all this procedure, just press "e" when on ubuntu boot menu (can be the live installation media) and add nouveau.modeset=0 to your kernel options. It is this open source reverse engineered drives that causes all sort of trouble.

You don't need to update kernel to 4.19, it works perfectly fine with 4.18 that comes with ubuntu 18.10 as well. After installing ubuntu, again on boot screen ensure to disable nouveau and if you wish later you can install nvidia proprietary drives inside ubuntu using the update manager

Hello. Can some one help me with instruction? Who can explain me what means "Run this from the Live USB." ? I should run this when Ubuntu is already installed? And where I can change this "root_partition=/dev/nvm0n1p2" ?
Thank you!