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Control Fan Speed [solved] -> it87 vs. asus_atk0110
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maltinator
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PostPosted: Wed Jun 30, 2010 5:29 pm    Post subject: Control Fan Speed [solved] -> it87 vs. asus_atk0110 Reply with quote

Hi,

I have a pwm-able Asus Board (an M4A785TD-M EVO). I am however not satisfied with the possibilities the BIOS gives me to configure the fanspeed.

My problem is, that there are no pwm related files in /sys/class/hwmon/...

I'm using Kernel 2.6.34-gentoo-r1 and lm-sensors 3.1.2

sensors-detect has the following output

Code:
Now follows a summary of the probes I have just done.
Just press ENTER to continue:

Driver `it87':
  * ISA bus, address 0x290
    Chip `ITE IT8712F Super IO Sensors' (confidence: 9)

Driver `k10temp' (autoloaded):
  * Chip `AMD Family 10h thermal sensors' (confidence: 9)


instead of it87 im using the asus_atk0110 module, and it works fine

Code:
# sensors
atk0110-acpi-0
Adapter: ACPI interface
Vcore Voltage:     +0.94 V  (min =  +0.85 V, max =  +1.60 V)
 +3.3 Voltage:     +3.38 V  (min =  +2.97 V, max =  +3.63 V)
 +5 Voltage:       +5.02 V  (min =  +4.50 V, max =  +5.50 V)
 +12 Voltage:     +12.22 V  (min = +10.20 V, max = +13.80 V)
CPU FAN Speed:     829 RPM  (min =  600 RPM)
CHASSIS FAN Speed:   0 RPM  (min =  600 RPM)
POWER FAN Speed:     0 RPM  (min =  600 RPM)
CPU Temperature:   +44.0°C  (high = +60.0°C, crit = +95.0°C) 
MB Temperature:    +51.0°C  (high = +45.0°C, crit = +75.0°C) 

k10temp-pci-00c3
Adapter: PCI adapter
temp1:       +35.0°C  (high = +70.0°C, crit = +83.5°C)


So what can I do, to control the fan speed? Or is this for the moment impossible with my board? On which AM3-boards is it possible?

thanks

malte


Last edited by maltinator on Wed Jun 30, 2010 10:46 pm; edited 1 time in total
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BitJam
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PostPosted: Wed Jun 30, 2010 8:36 pm    Post subject: Re: Control Fan Speed Reply with quote

maltinator wrote:
My problem is, that there are no pwm related files in /sys/class/hwmon/...

instead of it87 im using the asus_atk0110 module, and it works fine

So what can I do, to control the fan speed? Or is this for the moment impossible with my board? On which AM3-boards is it possible?

Obviously the asus_atk0110 module is not working fine.

I have an ASUS M4A78 PLUS (which has AM3 support) and pwm fan control works (on two out of three fans). I use the it87 module. A quick Google showed that the asus_atk0110 module does not support pwm. I had to use the "acpi_enforce_resources=lax" kernel boot parameter to get it (it87 pwm) to work. I'm currently using gentoo-sources-2.6.32-r3.
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maltinator
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Joined: 14 Jan 2004
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Location: Aachen, Germany

PostPosted: Wed Jun 30, 2010 10:09 pm    Post subject: Reply with quote

ok ... Everything works fine now with it87, and I am very pleased. Because that's what I bought a low TDP CPU, a huge Fan, BeQuiet power supply and an SSD for: Silence :-)

Now there are 2 questions left: 1. How dangerous is the "lax" handling of resources? There must be a reason why it's no longer the default behaviour
2. Does anyone know if sometime the asus_atk0110 module will support pwm?

So far, thank you BitJam! Those 200rpm really make a difference to me :-)

malte
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dufeu
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PostPosted: Mon Aug 09, 2010 12:48 am    Post subject: Re: Control Fan Speed Reply with quote

BitJam wrote:
... I had to use the "acpi_enforce_resources=lax" kernel boot parameter to get it (it87 pwm) to work. ...

Thank you. This is exactly what I needed to get it87 to load again.
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tnt
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PostPosted: Mon Apr 01, 2013 6:00 pm    Post subject: Reply with quote

that worked for me also, until recently.

currently:

Code:
Linux host 3.4.38-gentoo #3 SMP Mon Apr 1 19:30:47 CEST 2013 x86_64 Intel(R) Core(TM)2 Duo CPU E6550 @ 2.33GHz GenuineIntel GNU/Linux


but, although I have:

Code:
kernel /boot/vmlinuz acpi_enforce_resources=lax


I get

Code:
modprobe w83627ehf
modprobe: ERROR: could not insert 'w83627ehf': Device or resource busy


dmesg just gives:

Code:
w83627ehf: Found W83667HG chip at 0x290
ACPI Warning: 0x0000000000000295-0x0000000000000296 SystemIO conflicts with Region \_SB_.PCI0.SBRG.SIOR.HWRE 1 (20120320/utaddress-251)
ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver


if I load asus_atk0110, it works fine, but that doesn't give any kind of control for fans... :(
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tnt
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PostPosted: Sun May 19, 2013 6:09 pm    Post subject: Reply with quote

found the problem: lilo got emerged in the meanwhile and got installed during the latest 'make install'.
I've replaced lilo with grub (which has the right config), and everything is fine again.
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