Dell Inspiron 5480 (optimus)
OS: Arch Linux x86_64
Kernel: 5.7.12-arch1-1 nvidia-bug-report.log.gz (280.2 KB)
DE: GNOME 3.36.4
CPU: Intel i7-8565U (8) @ 4.600GHz
GPU: NVIDIA GeForce MX150
GPU: Intel UHD Graphics 620
When performing intensive tasks, my laptop overheats and ultimately shuts down due to rapidly reach high temps (over 90 in 3 minutes or so). So I’m struggling for several weeks on how to underclock my card.
I managed to enable underclock/overclock in nvidia-settings using coolbits. However I’m mainly facing three problems: (i) the minimum offset I’m able to set is -200Mhz, which is no enough. (ii) Overclocking takes effect immediately in nvidia-settings powermizer panel, but only in the P3 (which has the highest values Mhz) and underclocking does not (even with the inexpressive maximum offset of -200). Finally, (iii) I have 4 GPUPerfModes (0 to 3), three of them have the same min and max values (see here):
SO, to deal with overheating, I need to underclock my card or change GPUPerfModes to more realistic values and let’s say, stick on a performance level which is satisfactory and do not lead to extreme temps. Why the problems reported above (i, ii, and iii) are happening? There is something wrong with my config files? Settings? Any ideas?
So I have two questions: (i) how to underclock