Acer Extensa 4220 Fan Control

[SinDoc]

L.S.,

I run Ubuntu 10.10* on Acer Extensa 4220. My issue is excessive heat,
to the point that the computer shuts down after about half an hour
tops. I take it it's because of the fan _constantly working_. I was
wondering if anyone could point me to the right direction as to how to
use your module to resolve my issue. Complementary information about
my system is pasted below this message. Please feel free to ask for
more information should they be required.

(*) Recently upgraded to Ubuntu 10.10 from 10.4.

Kind regards and thank you in advance,
Sina

--
$ uname -a
Linux dornaa 2.6.35-24-generic #42-Ubuntu SMP Thu Dec 2 01:41:57 UTC
2010 i686 GNU/Linux

$ cat /etc/issue
Ubuntu 10.10 \n \l

$ acpi -V
Adapter 0: on-line
Thermal 0: ok, 70.0 degrees C
Thermal 0: trip point 0 switches to mode critical at temperature 105.0
degrees C
Thermal 1: ok, 72.0 degrees C
Thermal 1: trip point 0 switches to mode critical at temperature 95.0
degrees C
Thermal 1: trip point 1 switches to mode passive at temperature 91.0
degrees C
Cooling 0: LCD 0 of 9
Cooling 1: Processor 0 of 7

$ sensors
acpitz-virtual-0
Adapter: Virtual device
temp1: +72.0°C (crit = +95.0°C)
temp2: +70.0°C (crit = +105.0°C)

coretemp-isa-0000
Adapter: ISA adapter
Core 0: +74.0°C (high = +100.0°C, crit = +100.0°C)

$ cat /etc/modules
# /etc/modules: kernel modules to load at boot time.
#
# This file contains the names of kernel modules that should be loaded
# at boot time, one per line. Lines beginning with "#" are ignored.

lp

# Generated by sensors-detect on Wed Dec 29 15:59:10 2010
# Chip drivers
coretemp
acer_wmi

$ lsmod
Module Size Used by
aes_i586 7280 2098
aes_generic 26875 1 aes_i586
binfmt_misc 6599 1
rfcomm 33811 4
sco 7998 2
bnep 9542 2
l2cap 37008 16 rfcomm,bnep
parport_pc 26058 0
ppdev 5556 0
dm_crypt 11385 0
snd_hda_codec_realtek 218227 1
snd_hda_intel 22107 2
snd_hda_codec 87552 2 snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 5040 1 snd_hda_codec
snd_pcm 71475 2 snd_hda_intel,snd_hda_codec
snd_seq_midi 4588 0
pcmcia 35973 0
snd_rawmidi 17783 1 snd_seq_midi
snd_seq_midi_event 6047 1 snd_seq_midi
joydev 8767 0
snd_seq 47174 2 snd_seq_midi,snd_seq_midi_event
uvcvideo 55847 0
videodev 43098 1 uvcvideo
snd_timer 19067 2 snd_pcm,snd_seq
yenta_socket 21518 0
pcmcia_rsrc 10566 1 yenta_socket
arc4 1165 2
v4l1_compat 13359 2 uvcvideo,videodev
snd_seq_device 5744 3 snd_seq_midi,snd_rawmidi,snd_seq
b43 168681 0
nsc_ircc 18252 0
tifm_7xx1 3766 0
tifm_core 6089 1 tifm_7xx1
btusb 10969 2
bluetooth 50500 9 rfcomm,sco,bnep,l2cap,btusb
psmouse 59033 0
mac80211 231541 1 b43
irda 178906 1 nsc_ircc
pcmcia_core 14657 3 pcmcia,yenta_socket,pcmcia_rsrc
serio_raw 4022 0
snd 49038 13
snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
coretemp 5326 0
crc_ccitt 1351 1 irda
soundcore 880 1 snd
snd_page_alloc 7120 2 snd_hda_intel,snd_pcm
cfg80211 144470 2 b43,mac80211
lp 7342 0
acer_wmi 13929 0
parport 31492 3 parport_pc,ppdev,lp
i915 294989 4
drm_kms_helper 30200 1 i915
drm 168092 4 i915,drm_kms_helper
usbhid 36882 0
firewire_ohci 21042 0
sdhci_pci 6339 0
hid 67742 1 usbhid
sdhci 15890 1 sdhci_pci
intel_agp 26694 2 i915
tg3 123310 0
firewire_core 46643 1 firewire_ohci
crc_itu_t 1383 1 firewire_core
led_class 2633 3 b43,acer_wmi,sdhci
ssb 39288 1 b43
i2c_algo_bit 5168 1 i915
video 18712 1 i915
agpgart 32011 2 drm,intel_agp
output 1883 1 video

[SinDoc]

It might not be clear from my initial account but the issue is not
caused by the upgrade. As far as I can remember, it has persisted
through all my Ubuntu installations since a two years ago.

Sina

[Butrus Damaskus]

Did you try to clean your fan?

> --
> You received this message because you are subscribed to the Google Groups "Acer Laptop ACPI Extras" group.
> To post to this group, send email to acer...@googlegroups.com.
> To unsubscribe from this group, send email to aceracpi+u...@googlegroups.com.
> For more options, visit this group at http://groups.google.com/group/aceracpi?hl=en.
>
>

[Sina K. Heshmati]

"Butrus Damaskus" <butrus...@gmail.com> said:

> Did you try to clean your fan?

No, not to date.

Thanks for your reply, Butrus.

Sina

[Sina K. Heshmati]

"Sina K. Heshmati" said:

> "Butrus Damaskus" said:
>
>> Did you try to clean your fan?
>
> No, not to date.

I opened and cleaned it as much as I could. Nevertheless, the fan still runs non-stop.

Sina