I installed Arch Linux 4.15.9-1-ARCH on a Dell Inspiron 15 7000 (7577) laptop that comes with and (1) an integrated Intel HD Graphics 630 (Kaby Lake GT2) GPU and (2) a discrete NVIDIA GeForce GTX 1060 Mobile GPU.

After all the paraphernalia of installing base, base-devel, and setting everything else according to the (super-awesome I have to say) Installation Guide from the Wiki, I also installed gnome. At this point I was expecting my second monitor, connected through the HDMI 2.0 port, to come back from the afterlife...but it did not. So I checked the installed open-source video drivers (pacman -Q | grep xf86) and I didn't find anything. For what it's worth, at this point, whenever I executed echo $XDG_SESSION_TYPE I was getting back X11.

So I went ahead and installed nvidia, nvidia-settings, and restarted! After that, whenever I execute echo $XDG_SESSION_TYPE, it returns wayland...but still, my second monitor is all black.

I wonder if there is a way to use the discrete NVIDIA GPU under Wayland and make my second monitor come to life? (see below)

IMPORTANT: I'm using gdm. If I select only the GNOME option before login in, the system uses wayland and the integrated Intel GPU. If I select GNOME on Xorg, everything works fine (my second monitor works!) and the discrete NVIDIA GPU is used. I don't know if there is a "proper" way to know what GPU is being used...I figure this out going to the About section under Settings.

  • Did you ever get this working? – Perfi Jul 17 '18 at 18:01
  • 1
    Never. I know there is a way (of course, huh?!) because later on I installed Antergos and everything worked as expected. So I left that out since I knew I was going to need acres of configuration changes (and maybe something else) I didn't fully understand. I hope you have more luck. – x80486 Jul 17 '18 at 19:50
  • Darn. Thanks for your response! I guess I'll keep looking for now. – Perfi Jul 18 '18 at 4:53

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