Problems with Turing NVIDIA GPUs and D3 sleep

[cncastillo]

I have been using Cosmic lately and realized that the blue dot next to the battery indicator was always on, even if no app used the GPU (dropdown showed "-").

After a bit of googling, I found https://bbs.archlinux.org/viewtopic.php?id=297276, and there seems to be a problem with the NVIDIA driver 555 that prevents some GPUs from going to D3 sleep. My GPU is an NVIDIA GeForce GTX 1650 Ti Mobile.

❯ cat /proc/driver/nvidia/gpus/0000:59:00.0/power
Runtime D3 status:          Not supported
Video Memory:               Active

GPU Hardware Support:
 Video Memory Self Refresh: Not Supported
 Video Memory Off:          Supported

S0ix Power Management:
 Platform Support:          Supported
 Status:                    Disabled

I tried the fix specified in the link (adding options nvidia "NVreg_EnableGpuFirmware=0" in /etc/modprobe.d/nvidia.conf to disable GPS NVIDIA/open-gpu-kernel-modules#640), and now my GPU is turning off, and everything is looking good.

 ❯ cat /proc/driver/nvidia/gpus/0000:59:00.0/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:                    Enabled

I'm not sure if this was the best repo to post this, but it might be helpful to someone.

Cheers!

[Charlyo]

@cncastillo THANK YOU!
Been having issues with the same gpu in my laptop!