Unable to change power limit with nvidia-smi

NVIDIA Open GPU Kernel Modules Version

530.41.03-1

Does this happen with the proprietary driver (of the same version) as well?

Yes

Operating System and Version

Arch Linux

Kernel Release

Linux 6.2.8-arch1-1 #1 SMP PREEMPT_DYNAMIC Wed, 22 Mar 2023 22:52:35 +0000 x86_64 GNU/Linux

Hardware: GPU

GPU 0: NVIDIA GeForce RTX 2060 (UUID: GPU-2f685ce6-33f4-db75-ce05-81d1723a6ddb)

Describe the bug

Before recent update, I was able to execute:
~$ sudo nvidia-smi --power-limit 60

and have it work as expected.

After update, this is the output:

Changing power management limit is not supported for GPU: 00000000:01:00.0.
Treating as warning and moving on.
All done.

Changing power limits caused observable changes both in temperature and in performance, so I am pretty sure my GPU supports it.

For context:
I found that default power limit of 80W tends to heat up the GPU enough that it starts throttling itself and cause stuttering - 60W seemed to work perfectly and keep it under 63C during everything, without boosting my fan. The computer itself is a laptop (which explains issues with heat dissipation), a Lenovo Legion Y740, and I have a pretty good cooling pad to help out.

To Reproduce

~# nvidia-smi --power-limit 60

Bug Incidence

Always

nvidia-bug-report.log.gz

nvidia-bug-report.log.gz

More Info

Just a bit more context:
you may notice that in my Xorg config, I use option to skip EDID check for HDMI-0 output - the reason why, is because either driver doesn't recognize my (about 7y old) monitor, or the checksum that monitor outputs is invalid, and then it wouldn't let me use FullHD resolution on that monitor.

No idea if this is in any way related (I presume its) not, but this setup worked for over 5-6 months, so I doubt its related.

Start with the reproducible command nvidia-smi --power-limit 60 and inspect the attached nvidia-bug-report.log.gz, using the reported NVIDIA GeForce RTX 2060 and kernel version as context. Done means determining why changing the power management limit is rejected and restoring the expected limit change, with the result verified against the reproduction steps.