CachyOS KDE-Plasma/Wayland not returning from screen off

Issues & Assistance
1

I apologize if this is a repeat, I just can’t find it anywhere.

Whenever the screen blanks from inactivity, it won’t come back, I have to ctrl+f3, ctrl+f2 to switch to shell and back to recover the screen to log in. I’m living with the other graphical glitches for now, but that one is getting to me.

mcinitcpio.conf

MODULES=(nvidia nvidia_modeset nvidia_uvm nvidia_drm)

environment

T_QPA_PLATFORMTHEME=“wayland;xcb”

GBM_BACKEND=nvidia-drm
__GLX_VENDOR_LIBRARY_NAME=nvidia
ENABLE_VKBASALT=1
LIBVA_DRIVER_NAME=nvidia

OS: CachyOS x86_64
Host: MS-7C95 (3.0)
Kernel: Linux 6.19.0-2-cachyos
Uptime: 22 mins
Packages: 1384 (pacman), 8 (flatpak)
Shell: fish 4.4.0
Display (Odyssey G8): 3840x2160 @ 1.45x in 31", 120 Hz [External]
DE: KDE Plasma 6.5.5
WM: KWin (Wayland)
WM Theme: Breeze
Theme: Breeze (Dark) [Qt], Breeze-Dark [GTK2], Breeze [GTK3]
Icons: breeze-dark [Qt], breeze-dark [GTK2/3/4]
Font: Noto Sans (10pt) [Qt], Noto Sans (10pt) [GTK2/3/4]
Cursor: capitaine (24px)*
Terminal: konsole 25.12.2*
CPU: AMD Ryzen 7 5800X3D (16) @ 4.55 GHz
GPU: NVIDIA GeForce RTX 4090 [Discrete]
Memory: 5.84 GiB / 31.26 GiB (19%)
Swap: 0 B / 31.26 GiB (0%)
Disk (/): 119.28 GiB / 1.82 TiB (6%) - btrfs

2

Could perhaps be related to an issue of the current open source driver from Nvidia not properly re-initializing the GPU after waking up from sleep or hibernation.

According to a discussion in nvidia-drm: Fix display not waking after suspend/resume by destenson · Pull Request #996 · NVIDIA/open-gpu-kernel-modules · GitHub they are aware of the issue though and have already fixed it in the candidate for the next version (hopefully).

3

I’m still having problems with it, but wanted to clarify what I am experiencing just in case. It is not immediate screen blank or long term power save. It does turn the monitor back on, but screen stays blank and requires ctrl+f2 ctrl+f3 or similar variant.