After a few years on vanilla Arch I gave Manjaro a try. So far so good and I’m pleased with the distro except for one thing.
On my previous Arch system I was able to get the NVIDIA driver to completely turn off my GPU when not in use (Laptop with Optimus) which was great for power consumption and generated heat and noise. All I had to do is follow that official NVIDIA guide.
However, now that I’m on Manjaro, the GPU only manages to reach a low power state (4W consumption) and turn off its memory but not the GPU entirely (I have an LED that tells me if the NVIDIA card is on or not).
Here is the output of
Runtime D3 status: Enabled (fine-grained) Video Memory: Off GPU Hardware Support: Video Memory Self Refresh: Supported Video Memory Off: Supported
which validates the GPU power management mode (
Option "NVreg_DynamicPowerManagement=0x02" is called
nvidia-smi tells me that the only process is Xorg and that it’s doing nothing. The card is also not driving any display.
I tried a few kernels (5.6 to 5.8) and NVIDIA drivers 440 and 450 with no luck.
Does anyone experiences the same problem or have an idea on how to solve it?