dGPU doesnt get suspended

[Moshe-Shelomov]

I've had this issue for some time now but didnt have time to create an issue here, tried for a long time to somehow solve it using LLMs to no avail.

Basically, dGPU doesnt turn off in hybrid mode.
Turning dGPU off via 'supergfxctl --mode Integrated' works though, but it basically makes whole "hybrid" mode useless since it runs dGPU all the time.

I installed asusctl according to the instructions on the website:

• installed nvidia-laptop-power-cfg
• enabled systemd services nvidia-suspend.service nvidia-hibernate.service nvidia-resume.service nvidia-powerd
• added to /etc/modprobe.d/nvidia.conf line 'options nvidia NVreg_EnableS0ixPowerManagement=1' since before that 'cat /proc/driver/nvidia/gpus/0000:01:00.0/power' showed "Disabled" status in S0ix Power Management

I checked nvidia-smi and it shows Xorg and kwin_wayland.

Operating System: EndeavourOS
KDE Plasma Version: 6.7.0
KDE Frameworks Version: 6.27.0
Qt Version: 6.11.1
Kernel Version: 7.0.12-zen1-1-zen (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 7735HS with Radeon Graphics
Memory: 34 GB of RAM (32.8 GB usable)
Graphics Processor 1: AMD Radeon 680M
Graphics Processor 2: NVIDIA GeForce RTX 4060 Laptop GPU
Manufacturer: ASUSTeK COMPUTER INC.
Product Name: ASUS TUF Gaming A15 FA507NV_FA507NV

nvidia-open-dkms driver, version 610.43.02