Second monitor doesn't connect

Question

I'm running Elementary Os Loki 0.4.1. I wanna connect another monitor to my laptop, but my OS doesn't recognize it. In settings it doesn't even detect that I have another monitor connected (via HDMI).

I've trying shut down the system and getting it back up again, it didn't work. I'm up to date with updates and upgrades too.

I don't know what else to try. If someone could help me, that'll be awesome :)

UPDATE I've been looking and found this: Laptop + HDMI external monitor issue? I tried it , but I don't have the ~/.config/monitors.xml file. I've search everywhere, even within hidden folder, just nothing.

In my terminal I put tho command lspci | grep VGA and the output was:

00:02.0 VGA compatible controller: Intel Corporation Skylake Integrated Graphics (rev 06)

I tried the command lspci -nn | grep '\[03' too, and the output was:

00:02.0 VGA compatible controller [0300]: Intel Corporation Skylake Integrated Graphics [8086:191b] (rev 06)

01:00.0 3D controller [0302]: NVIDIA Corporation GM206M [GeForce GTX 965M] [10de:1427] (rev a1)

Answer 1

I don't know If you are still around. I never done this but I just gathered info I believe might help you

---

First

You need to install Nvidia drivers

Install:

$ sudo apt install software-properties-gtk software-properties-common

Then use the command:

$ sudo ubuntu-drivers list

You should get something like this (probably different version numbers):

nvidia-304
nvidia-340
intel-microcode
nvidia-367

Install nvidia-367 (or the version you want, and could be different)

$ sudo apt install nvidia-367 nvidia-settings

ref: https://gist.github.com/Jiab77/d3344422ee6d334f284425b558dc572c

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Final step

Open:

$ software-properties-gtk

Choose the tab Additional Drivers

Wait for the loading list, and then you should see the recently installed driver.

Select it and reboot

Now, after reboot, open $ nvidia-settings

Look after an entry named PRIME Profiles, select it and then choose the NVIDIA GPU

Reboot again

Done

---

Additional Info

You can also check and change PRIME using a command

Install:

$ sudo apt install nvidia-prime

To check

$ sudo prime-select query

To select Intel GPU as PRIME

$ sudo prime-select intel

To select NVIDIA GPU as PRIME

$ sudo prime-select nvidia

ref: https://www.linuxbabe.com/desktop-linux/switch-intel-nvidia-graphics-card-ubuntu

Answer 2

I have such a problem when my video driver is set to use the internal Intel video card instead of the Nvidia one, and this is because on my hp laptop the HDMI port is on the Nvidia graphics card and there is no access to the internal Intel one. Check out if your configuration is similar

Answer 3

If you are still having a problem with display drivers you can try: sudo ubuntu-drivers autoinstall

Or if there are any other problems with drivers or packages during the boot run: sudo dpkg --configure -a