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#1 2014-04-02 17:14:18

Outfl3sh
Member
Registered: 2014-04-02
Posts: 1

Nvidia overheating - fan speed control?

Hello there I have a problem with my GT 635M under optimus, since folks at nvidia dev talk ignore me for few weeks I need to find my own way around.
So basically I need working fan control, to write some script to fix overheating.

original question @ nvidia devtalk

my specs:

kernel: ARCH 3.13.8-1-ck (that from repo-ck)
xorg: 1.15.0-5
xrandr: 1.4.1-1
primus: 2013 12 26

laptop model: Asus K55VJ-SX069H
graphics: NVIDIA® GeForce with CUDA® 635M 2GB DDR3 VRAM
CPU: INTEL Core i5 Ivy Bridge (3210M)
RAM: 8 GB

screens:
LVDS (internal): 1366x768 @ 60Hz
HDMI (external): 1920x1080 @ 60Hz

what I've done so far:
added coolbits "5" to xorg config
added GRUB_CMDLINE_LINUX="acpi_osi=Linux" to grub
checked that nvidia-settings -a not working
checked that nvclock -F not working
checked that under M$ Windows 8 everything working just fine
checked that there CK patches don't affect this

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#2 2014-04-03 05:04:53

ilkyest
Member
From: Brazil
Registered: 2010-02-13
Posts: 260

Re: Nvidia overheating - fan speed control?

if you are using nouveau driver is there something about change "profile fan" on this board.....

have you tried wiki from arch linux?

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#3 2014-04-03 05:35:45

Rexilion
Member
Registered: 2013-12-23
Posts: 784

Re: Nvidia overheating - fan speed control?

In my experience, the nvidia driver is kind of 'stubborn'. You need to use more 'persuasive' power to make it scale down it's clocks:

http://guilleml.wordpress.com/2011/04/2 … -on-linux/

Using only coolbits is nog good enough IMHO.


fs/super.c : "Self-destruct in 5 seconds.  Have a nice day...\n",

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#4 2014-04-05 10:47:43

Buddlespit
Member
From: Chesapeake, Va.
Registered: 2014-02-07
Posts: 343

Re: Nvidia overheating - fan speed control?

I've got two scripts to manually control my fan speeds. This one raises the fan to 65% (I can only get it as high as 77%, FYI)

#!/bin/bash
nvidia-settings -a [gpu:0]/GPUFanControlState=1
nvidia-settings -a [fan:0]/GPUCurrentFanSpeed=65

and this one lowers it again to the regular speeds

#!/bin/bash
nvidia-settings -a [gpu:0]/GPUFanControlState=0

I use Coolbits 4 instead of 5, because I can't do anything with clock speeds on my card.

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#5 2014-04-05 13:43:26

brebs
Member
Registered: 2007-04-03
Posts: 3,427

Re: Nvidia overheating - fan speed control?

I have a script to reduce the Nvidia *clockspeed*, to prevent overheating.

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