Arch Linux

MagicBoss812

Member

Registered: 2023-11-05

Posts: 6

Monitor "No signal" on starting sddm(Display Manager)

I hope, I can provide as much information as possible via pictures, as my current and only PC has this issue with arch.
Appon starting via grub the display goes black, which is normal when it starts the Display Manager, in this case sddm. But then it shows me "No Signal", meaning the monitor doesn't receive any output from the login screen.
I can start tty normally and with "sudo systemctl status sddm" I can see that it's running in the background and enabled.
https://imgur.com/a/UUUT0CD

My xorg config:
https://imgur.com/a/mMhh4DR

My System:
Gigabyte G5 Laptop
RTX 3050 ti mobile
I5-11400H
16GB RAM

Kernel:
6.10.0-zen1-2-zen

Last online: yesterday
Last pacman -Syu: Yesterday
I'm using Optimus Manager for gaming, as my laptop was build to use hybrid, so iGPU for Display and the NVIdia GPU for 3D rendering.
So the last config of Optimus Manager yesterday was to use "Nvidia", which ran normal and without any lag spikes, whatsoever.
Current Optimus Manager config is "integrated".

Output of "startplasma-x11"

$DISPLAY is not set or cannot connect to the X server.

Output of "xrandr" when only typing xrandr:

 Can't open Display

I hope someone can help me further. I will try my best to provide as much information as possible, if you need anything

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,210

Re: Monitor "No signal" on starting sddm(Display Manager)

Remove the xorg config, remove optimus-manager, use prime-run instead: https://wiki.archlinux.org/title/PRIME# … er_offload