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HayKor

Member

Registered: 2025-02-24

Posts: 2

[SOLVED] NVidia dGPU can't power off despite of D3

I'm running hybrid setup with AMD iGPU and NVidia dGPU on my Asus laptop. I use Wayland as well, if It does change anything
I have turned on D3 runtime pm for Nvidia dGPU, but it seems to have no effect, as the dGPU still consumes around 7W of power on idle. Please, tell me if I need to pin some more logs.

❯ cat /proc/driver/nvidia/gpus/0000:01:00.0/power
Runtime D3 status:          Enabled (fine-grained)
Video Memory:               Active

GPU Hardware Support:
 Video Memory Self Refresh: Supported
 Video Memory Off:          Supported

S0ix Power Management:
 Platform Support:          Supported
 Status:                    Disabled

Notebook Dynamic Boost:     Supported

❯ cat /sys/bus/pci/devices/0000:01:00.0/power/control
auto

❯ nvidia-smi
Mon Feb 24 23:31:38 2025       
+-----------------------------------------------------------------------------------------+
| NVIDIA-SMI 570.86.16              Driver Version: 570.86.16      CUDA Version: 12.8     |
|-----------------------------------------+------------------------+----------------------+
| GPU  Name                 Persistence-M | Bus-Id          Disp.A | Volatile Uncorr. ECC |
| Fan  Temp   Perf          Pwr:Usage/Cap |           Memory-Usage | GPU-Util  Compute M. |
|                                         |                        |               MIG M. |
|=========================================+========================+======================|
|   0  NVIDIA GeForce RTX 3050 ...    Off |   00000000:01:00.0 Off |                  N/A |
| N/A   42C    P8              6W /   30W |       1MiB /   4096MiB |      0%      Default |
|                                         |                        |                  N/A |
+-----------------------------------------+------------------------+----------------------+
                                                                                         
+-----------------------------------------------------------------------------------------+
| Processes:                                                                              |
|  GPU   GI   CI              PID   Type   Process name                        GPU Memory |
|        ID   ID                                                               Usage      |
|=========================================================================================|
|  No running processes found                                                             |
+-----------------------------------------------------------------------------------------+

❯ cat /sys/bus/pci/devices/0000:01:00.0/power/runtime_status 
active

Last edited by HayKor (2025-02-24 20:50:56)

HayKor

Member

Registered: 2025-02-24

Posts: 2

Re: [SOLVED] NVidia dGPU can't power off despite of D3

I have found the causer of the dGPU being always active. It was

btop

that alwats run in background and in fact causes dGPU to wake up.
Marking it as solved