Arch Linux

Urfaust

Member

From: Germany

Registered: 2009-01-30

Posts: 164

GPU Fan blows almost at mid speed (nvidia Geforce Go 7600)

Hi,

I'm new to Arch and i have a small Problem with the fan of my GPU card. After booting my laptop the fan is quiet (running at low speed) but after a few minutes it goes to full speed, standing there for a few seconds and then running almost constantly with middle speed. I changed from Ubuntu to Arch and I didn't had the problem there (fan was running at low speed most of the time).:rolleyes:
I read several things about fan control of laptops but nothing seems to work for me:
- http://wiki.archlinux.org/index.php/Fan_control - lm_sensors doesn't recognize a fan, I only see temperatures.
- I can't control the fan via  /proc/acpi/fan - directory is empty.  /proc/acpi/thermal_zone/THRM shows only one trip_point which I can not change.
- BIOS update didn't brought improvement either
- can't control the fan via nvclock utility

So, I'm running out of ideas.:)
I use nvidia driver version 180.22, here is the output from acpitool -e:

 Kernel version : 2.6.28-ARCH   -    ACPI version : 20080926
  -----------------------------------------------------------
  Battery #1     : slot empty

  AC adapter     : on-line
  Fan            : <not available>

  CPU type               : Intel(R) Core(TM)2 CPU         T5500  @ 1.66GHz 
  Min/Max frequency      : 1000/1667 MHz
  Current frequency      : 1000 MHz
  Frequency governor     : ondemand 
  Freq. scaling driver   : acpi-cpufreq 
  Cache size             : 2048 KB
  Bogomips               : 3325.12 
  Bogomips               : 3326.56 

  # of CPU's found       : 2

  Processor ID           : 0
  Bus mastering control  : yes
  Power management       : yes
  Throttling control     : yes
  Limit interface        : yes
  Active C-state         : C0
  C-states (incl. C0)    : 4
  Usage of state C1      : 593 (0.0 %)
  Usage of state C2      : 53566 (2.2 %)
  Usage of state C3      : 2435330 (97.8 %)
  T-state count          : 8
  Active T-state         : T0


  Processor ID           : 1
  Bus mastering control  : yes
  Power management       : yes
  Throttling control     : yes
  Limit interface        : yes
  Active C-state         : C0
  C-states (incl. C0)    : 4
  Usage of state C1      : 411 (0.0 %)
  Usage of state C2      : 46548 (1.0 %)
  Usage of state C3      : 2311953 (48.2 %)
  T-state count          : 8
  Active T-state         : T0



  Thermal zone 1 : ok, 51 C
  Trip points : 
  ------------- 
  critical (S5):           100 C


   Device    S-state      Status   Sysfs node
  ---------------------------------------
  1. HDEF      S4     disabled  pci:0000:00:1b.0
  2. PXS2      S4     disabled  
  3. PXS3      S4     disabled  pci:0000:04:00.0
  4. PXS4      S4     disabled  
  5. PXS5      S4     disabled  
  6. PXS6      S4     disabled  
  7. USB1      S3     disabled  pci:0000:00:1d.0
  8. USB2      S3     disabled  pci:0000:00:1d.1
  9. USB3      S3     disabled  pci:0000:00:1d.2
  10. USB4      S3     disabled  pci:0000:00:1d.3
  11. USB7      S3     disabled  pci:0000:00:1d.7
  12. LANC      S4     disabled  pci:0000:05:05.0
  13. MODM      S4     disabled

Nearly forgot: the notebook is a Fujitsu Siemens Amilo Pi 1556.
Any suggestions? It's not like the fan goes crazy or blows at constant full speed but it's recognizable at starts to get on my nerves.;) Plus I know the fan regulation worked far better under Ubuntu...:|
Thx in advance for any ideas.

Last edited by Urfaust (2009-01-30 17:22:52)

ahcaliskan

Member

From: Sweden

Registered: 2008-10-29

Posts: 174

Re: GPU Fan blows almost at mid speed (nvidia Geforce Go 7600)

DSTD in BIOS has to be altred by the kernel. Perhaps ubuntu has patch for that.

http://www.laptopvideo2go.com/forum/ind … opic=19190

Also, nvidia driver is responsible for the fan control. Read this thread, can be helful!

http://www.nvnews.net/vbulletin/showthread.php?t=75995

Gentoo solution:
http://forums.gentoo.org/viewtopic-p-37 … ml#3774561

Last edited by ahcaliskan (2009-01-30 23:36:45)

Urfaust

Member

From: Germany

Registered: 2009-01-30

Posts: 164

Re: GPU Fan blows almost at mid speed (nvidia Geforce Go 7600)

Thx ahcaliskan. I forgot to mention, I already looked for errors in the DSDT following this wiki entry http://wiki.ubuntuusers.de/acpi-fix. This is the output from iasl:

 iasl -sa dsdt.dsl 

Intel ACPI Component Architecture
ASL Optimizing Compiler version 20081204 [Jan  2 2009]
Copyright (C) 2000 - 2008 Intel Corporation
Supports ACPI Specification Revision 3.0a

dsdt.dsl  2009:                     Method (NVIF, 3, NotSerialized)
Warning  1087 -                                ^ Not all control paths return a value (NVIF)

ASL Input:  dsdt.dsl - 5744 lines, 196146 bytes, 2185 keywords
AML Output: dsdt.aml - 21314 bytes, 609 named objects, 1576 executable opcodes

Compilation complete. 0 Errors, 1 Warnings, 0 Remarks, 34 Optimizations

Only 1 Warning and no errors. So i didn't recompile....
Reading your links at the moment, maybe I find another hint...

ahcaliskan

Member

From: Sweden

Registered: 2008-10-29

Posts: 174

Re: GPU Fan blows almost at mid speed (nvidia Geforce Go 7600)

http://wiki.archlinux.org/index.php/DSDT

Urfaust

Member

From: Germany

Registered: 2009-01-30

Posts: 164

Re: GPU Fan blows almost at mid speed (nvidia Geforce Go 7600)

Yeah, thx again.
I managed to find a modified dsdt.dsl for a similar laptop model (Amilo Xi 1526). I fixed my own file with the modifications from the one found. So now i have no errors nor warnings when recompiling plus this modification fixed an issue whith a delay at boot, so my boot time improved more than 10s.:D
There is only one thing left: the problem with the fan remains lol. I don't know what to do. I think I take it as it is and hope for a new BIOS version.:rolleyes: As I wrote above, it is not that the fan is out of control or something...

nowahn

Member

From: elsewhere

Registered: 2008-12-05

Posts: 75

Re: GPU Fan blows almost at mid speed (nvidia Geforce Go 7600)

can't control the fan via nvclock utility

even with the -f flag ?
can you at least get the GPU temperature ?

---

take time to daydream, inspiration comes ...

Urfaust

Member

From: Germany

Registered: 2009-01-30

Posts: 164

Re: GPU Fan blows almost at mid speed (nvidia Geforce Go 7600)

can't control the fan via nvclock utility

even with the -f flag ?
can you at least get the GPU temperature ?

It doesn't work even with the -f flag.
E.g.:

nvclock -f -F 50
Error: Your card doesn't support fanspeed adjustments!

But I can get the temperature. It is between 65 - 70°C...

See also this interesting review: http://dobeliou.free.fr/amilo-gentoo/#acpi_fan

And before you ask : I have BIOS 1.25 installed but nevertheless it worked better with Ubuntu..

Last edited by Urfaust (2009-01-31 16:45:27)