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I have Ubuntu 18.04 installed on my Dell XPS 15 9560.

It has been a terrible experience. When I install any Nvidia drivers (following all of the guides and previous answers on forums) my laptop boots to a black screen and won't work.

It freezes on suspend and never comes back but the main issue I have is my HDMI port does not work.

I don't mind not having usage of the GPU power or having to shut down every time I close the lid however I really need dual monitors for my work.

Can I activate the HDMI without Nvidia drivers installed?

xrandr output:

xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080
default connected primary 1920x1080+0+0 0mm x 0mm
   1920x1080     77.00* 

xrandr --output HDMI1

xrandr: Failed to get size of gamma for output default
warning: output HDMI1 not found; ignoring

inxi -G output

inxi -G 
Graphics:  Card-1: Intel Device 591b
           Card-2: NVIDIA GP107M [GeForce GTX 1050 Mobile]
           Display Server: x11 (X.Org 1.19.6 )
           drivers: fbdev (unloaded: modesetting,vesa)
           Resolution: 1920x1080@77.00hz
           OpenGL: renderer: llvmpipe (LLVM 6.0, 256 bits)
           version: 3.3 Mesa 18.0.5

lspci output

lspci -nn | grep '\[03'
00:02.0 VGA compatible controller [0300]: Intel Corporation Device [8086:591b] (rev 04)
01:00.0 3D controller [0302]: NVIDIA Corporation GP107M [GeForce GTX 1050 Mobile] [10de:1c8d] (rev ff)

The following post did not help me as the only suggestions are install Nvidia drivers, which breaks my OS.

Ubuntu 16.04 Dell XPS 15 does not detect external Monitor using HDMI

And in this post, it suggests to install nvidia drivers to avoid freeze on boot whereas nvidia drivers cause my laptop to freeze on boot:

Freezing at login on Dell XPS 15 9560 with Ubuntu 18.04

I also tried this but it didn't work, probably needs Nvidia drivers installed:

Ubuntu 18.04 Hdmi not detected

Any help is really appreciated.

*****edit***** Just to clarify, I also have Windows 10 on this machine in a different partition and the HDMI works perfectly with it. It isn't a faulty port or cable.

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You can disable your GTX1050 with Bumblebee.

https://wiki.ubuntu.com/Bumblebee

You'll get better battery life and the HDMI + USB C HDMI is working for me on ArchLinux

https://wiki.archlinux.org/index.php/Dell_XPS_15_9560#Graphics

-Source I have an XPS with running Windows and Linux

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