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#1 2021-02-27 11:14:16

fractalinfinitas
Member
Registered: 2015-05-25
Posts: 1

External Display Not Detected Prior to Starting X

Hello everyone,

I'm running Arch on a MSI - GE66 10SFS laptop running a NVidia GeForce RTX 2070 SUPER Mobile.

Prior to starting X I'm not getting any display output on an external display connected via HDMI. Once I launch X, it seems to be detected just fine - but idealistically I'd like to be able to reboot the laptop with the lid closed and have the TTY display on the external monitor without having to open the laptop lid.

I have the following boot configuration in my grub.cfg

linux	/boot/vmlinuz-linux root=UUID=8adfd361-a2e6-49b0-aa85-6d5cabbe6a29 rw  loglevel=3 quiet nvidia-drm.modeset=1 video=eDP-1:1920x1080@85

Despite the fact that I have eDP-1 in the video, it is an HDMI connection - but that is the device that stated it was connected so that's what I went with.

Output of

lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics (rev 05)
01:00.0 VGA compatible controller: NVIDIA Corporation TU104M [GeForce RTX 2070 SUPER Mobile / Max-Q] (rev a1)

Not sure what other information you might need, but please let me know and I'll be happy to share. Thanks in advance for any advice or tips you might be able to provide - didn't have much luck trying to search for this exact issue on the forums.

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#2 2021-02-27 14:15:05

seth
Member
Registered: 2012-09-03
Posts: 50,012

Re: External Display Not Detected Prior to Starting X

Assuming one output is on intel and one on nvidia, you'll not be able to clone them (afaik) but you can select which driver to use for which console.
https://www.kernel.org/doc/Documentation/fb/fbcon.txt - see "fbcon=map"

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