Help in troubleshooting high CPU temperature

Enrico1989 · 2025-07-07 08:35:48

That setting was indeed enabled, but disabling it doesn't seem to help. After all, the improvement I saw yesterday was in spite of the setting being enabled, because I've disabled it only after you told me to try. I'm assuming the setting did not change from under my feet, obviously.

seth · 2025-07-07 12:04:48

seth wrote:

Btw, I kinda forgot to point that out, but "prime-run unigine-heaven" will likely yield much better performance.

Do you face any of these issues if you explicitly run whatever game on the nvidia GPU?

Enrico1989 · 2025-07-07 13:27:23

seth wrote:

Btw, I kinda forgot to point that out, but "prime-run unigine-heaven" will likely yield much better performance.

I've run that (and again without prime-run to remind myself), and prime-run results in a much smoother experience.

I was running sudo intel_gpu_top and noticed that without prime-run the usage of the Render/3D engine is ~100%, whereas with prime-run it is ~15%.

I suppose this is good news. How do I tell this game to run like that? Currently, in the settings for this game in Steam I have this

__NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia __VK_LAYER_NV_optimus=NVIDIA_only %command%

but I've forgotten where I have picked these various pieces and when (surely not in the last week). Do I have to write something else in there to make use of this prime-run? Or do I have to lanuch steam like that, at the games I launch will inherit?

seth · 2025-07-07 15:45:03

That is prime-run, https://gitlab.archlinux.org/archlinux/ … type=heads
If the GPU doesn't get used (high intel_gpu_top and no nvidia-smi activation) you might simply lack the lib32-nvidia-utils, though w/ WOW64 even that should™ no longer be the case?

Enrico1989 · 2025-07-07 16:29:34

seth wrote:

That is prime-run, https://gitlab.archlinux.org/archlinux/ … type=heads

Thanks!

seth wrote:

you might simply lack the lib32-nvidia-utils

I have it installed, if that's enough.

seth · 2025-07-07 19:42:22

seth wrote:

If the GPU doesn't get used (high intel_gpu_top and no nvidia-smi activation)

Is that the case then?

Enrico1989 · 2025-07-07 19:59:45

Is this an answer?

seth · 2025-07-07 20:24:35

Root.exe is clearly running on the nvidia GPU, whatever CPU overhead it produces is extra.

Enrico1989 · 2025-07-07 22:54:09

What do you mean? That the CPU is getting hot because the GPU is heating the whole laptop?

seth · 2025-07-07 23:01:02

No, https://bbs.archlinux.org/viewtopic.php … 3#p2242833
The CPU gets hot because Root.exe uses it excessively. But not for 3D rendering. Maybe it's a bug, maybe Root.exe is mining bitcoins, but it's running on the GPU and also uses a lot of CPU power for other purposes.

Enrico1989 · 2025-07-08 06:33:55

Assuming that the "good behavior" I saw two days ago, can we try to reconstruct what changed since then?

I don't think it was coincidental, because I didn't just play 5 minutes. I played for hours, and it never ever happened other than in that occasion that the temperature didn't rise to absurd levels.

seth · 2025-07-08 06:44:02

You'll have to figure why Root.exe is using so much CPU power, which is either a bug or feature of that program.
Figure what that actually is, kill it - does your game or whatever die as well? From all I can google it seems simply malware.

Enrico1989 · 2025-07-23 17:04:40

I've been away fro the last week, today I'm back, I've started root quite a few minutes ago, and the temperature seems stable at ~60°C.

I have no clue what's going on, but can we do anything to compare with past measurements?

seth · 2025-07-23 19:46:18

seth wrote:

You'll have to figure why Root.exe is using so much CPU power, which is either a bug or feature of that program.
Figure what that actually is, kill it - does your game or whatever die as well? From all I can google it seems simply malware.

Arch Linux

#51 2025-07-07 08:35:48

Re: Help in troubleshooting high CPU temperature

#52 2025-07-07 12:04:48

Re: Help in troubleshooting high CPU temperature

#53 2025-07-07 13:27:23

Re: Help in troubleshooting high CPU temperature

#54 2025-07-07 15:45:03

Re: Help in troubleshooting high CPU temperature

#55 2025-07-07 16:29:34

Re: Help in troubleshooting high CPU temperature

#56 2025-07-07 19:42:22

Re: Help in troubleshooting high CPU temperature

#57 2025-07-07 19:59:45

Re: Help in troubleshooting high CPU temperature

#58 2025-07-07 20:24:35

Re: Help in troubleshooting high CPU temperature

#59 2025-07-07 22:54:09

Re: Help in troubleshooting high CPU temperature

#60 2025-07-07 23:01:02

Re: Help in troubleshooting high CPU temperature

#61 2025-07-08 06:33:55

Re: Help in troubleshooting high CPU temperature

#62 2025-07-08 06:44:02

Re: Help in troubleshooting high CPU temperature

#63 2025-07-23 17:04:40

Re: Help in troubleshooting high CPU temperature

#64 2025-07-23 19:46:18

Re: Help in troubleshooting high CPU temperature

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