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jrlx86

Member

Registered: 2024-09-07

Posts: 2

[SOLVED] Thinkpad t15g gen2 - External monitor not detected (Hyprland)

Hi there,

I've run all updates so now on Kernel 6.10.7

hyprctl monitors shows only my laptop display (eDP-1 (ID 0))

I checked dmesg after connecting the display and I have a message that says:
[ 2188.319593] ucsi_acpi USBC000:00: UCSI_GET_PDOS failed (-95)
[ 2191.013299] usb usb2-port2: attempt power cycle
[ 2193.522812] ucsi_acpi USBC000:00: UCSI_GET_PDOS failed (-95)
[ 2199.476619] usb usb2-port2: unable to enumerate USB device

I am running proprietary nvidia drivers for the internal 3080.

The cable is USB-C to HDMI (I've tried both USB-C "SS" and "Thunderbolt" ports on the laptop. The monitor works perfectly in Windows 10 using the same cable.

Many thanks in advance

Last edited by jrlx86 (2024-09-08 08:06:54)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,146

Re: [SOLVED] Thinkpad t15g gen2 - External monitor not detected (Hyprland)

Wayland nvidia anything requires the "nvidia-drm.modeset=1" kernel parameter, is that setup?

jrlx86

Member

Registered: 2024-09-07

Posts: 2

Re: [SOLVED] Thinkpad t15g gen2 - External monitor not detected (Hyprland)

Wayland nvidia anything requires the "nvidia-drm.modeset=1" kernel parameter, is that setup?

Thank you V1del. That resolved it What was throwing me is that I thought that it was a power delivery issue (PD) and I figured these ports would work with the iGPU on the intel processor.

For anyone in the same boat I read through this page: https://wiki.archlinux.org/title/NVIDIA

From what I've read there are several ways to achieve this but I simply did:
sudo nano /etc/modprobe.d/nvidia.conf

Added:
options nvidia_drm modeset=1 fbdev=1

And rebooted.