Question

0

Fan running uncontrolled on Dell Vostro 3560 under Ubuntu 12.10

rated 0 times [ 0] [ 0] / answers: 1 / hits: 3597 / 2 Years ago, tue, march 22, 2022, 6:35:48

EDIT: It is 4 months since I asked this question, more than 1000 views, but the bug is still unassigned on launchpad. I suggest that everybody affected logs in and subscribes himself as being affected.

I have switched off the dedicated graphics:

0:IGD:+:Pwr:0000:00:02.0

1:DIS: :Off:0000:01:00.0

This is the output of the "sensor" - command, whith fan running on full speed:

 radeon-pci-0100

Adapter: PCI adapter

temp1:       -128.0°C  



coretemp-isa-0000

Adapter: ISA adapter

Physical id 0:  +42.0°C  (high = +87.0°C, crit = +105.0°C)

Core 0:         +41.0°C  (high = +87.0°C, crit = +105.0°C)

Core 1:         +41.0°C  (high = +87.0°C, crit = +105.0°C)

Is there a safe solution to this, and when can we expect ubuntu to cover fan throtteling?

EDIT: Weirdly enough, it now suddenly switched off almost completely . Here is the sensor - output again:

radeon-pci-0100

Adapter: PCI adapter

temp1:       -128.0°C  



coretemp-isa-0000

Adapter: ISA adapter

Physical id 0:  +41.0°C  (high = +87.0°C, crit = +105.0°C)

Core 0:         +41.0°C  (high = +87.0°C, crit = +105.0°C)

Core 1:         +39.0°C  (high = +87.0°C, crit = +105.0°C)

This is weird! But the behavior seems to correspond to the bug report filed here:
https://bugs.launchpad.net/ubuntu/+source/acpi/+bug/1049064

EDIT: I am running the gnome3- flavour

Answers

Only authorized users can answer the question. Please sign in first, or register a free account.

uestred

Add To Favorites

Follow

Total Points: 464

Total Questions: 104

Total Answers: 112

Location: Israel

Member since Wed, Apr 14, 2021

3 Years ago

uestred questions

1 SDDM error - Cannot assign to non-existent property "actionItemsVisible"

Mon, Sep 27, 21, 03:43, 3 Years ago

1 Linux Kernel update error causing package management to grind to a halt!

Sat, Mar 11, 23, 04:28, 1 Year ago

1 What does dev mean in linux commands?

Wed, Mar 2, 22, 04:04, 2 Years ago

1 Bluetooth audio problems on 21.04

Wed, Jan 5, 22, 05:57, 2 Years ago

1 Ubuntu Landscape - update_security_db.sh failure on fresh quickstart deployment

Sun, Apr 30, 23, 12:47, 1 Year ago

View All

answered 2 Years ago uquelighted · Accepted Answer

Check out my answer on launchpad, it seems like the actual root of the problem has been found:

Hi, I think that I should write here as I was also having this problem
for over a year. Last week I gave google next try and it occured that
it's hardware problem in some of dell's laptops family. I've been
using i8k since ubuntu 12.10 till yesterday. Look on this post:
http://en.community.dell.com/support-forums/laptop/f/3518/t/19511930.aspx

I've added heat sink like this guy suggested and now everythink works
like should without i8kfan. I have checked temperatures and it looks
that dell is suppressing fan control in windows with drivers. I've
tested it in such way that after turning laptop on I stopped on uboot
screen and waited for couple of minutes. Fan shortly hit the maximum
so then next step was to boot into windows. Fans stopped immediately
after couple of seconds but I've checked and temperature of PCH was
always >65Degress. Now after installing termalpad and small copper
heat sink temp is ~50 and even on grub menu fans are quiet. I think
this is only reasonable solution. Some dell's guy just f-u-c-k-e-d up
design cause thermal plate which covers almost all main board is cut
on PCH chip so it is without any thermal sink. they should repair such
things on warranty. Hope this helps, after over a year it is really
pleasant to have it finally quiet.