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Dark.Light

Member

Registered: 2010-08-09

Posts: 19

[SOLVED] Constant high temprature on Lenovo U410

Hello everyone!

Right now, I'm observing constant high temperatures on my laptop. (It's not just today though. I've been noticing it for past couple of days.) lm_sensors gives me this:

⏚ [noel:~] % sensors
acpitz-virtual-0
Adapter: Virtual device
temp1:        +82.0°C  (crit = +104.0°C)

coretemp-isa-0000
Adapter: ISA adapter
Physical id 0:  +85.0°C  (high = +87.0°C, crit = +105.0°C)
Core 0:         +85.0°C  (high = +87.0°C, crit = +105.0°C)
Core 1:         +83.0°C  (high = +87.0°C, crit = +105.0°C)

nouveau-pci-0100
Adapter: PCI adapter
temp1:        +81.0°C  (high = +95.0°C, hyst =  +3.0°C)
                       (crit = +105.0°C, hyst =  +5.0°C)
                       (emerg = +135.0°C, hyst =  +5.0°C)

The system is not under any kind of load. CPU usage is about 1-2%. This is about 10 minutes after the boot.

I tried to set up lm_sensors and then control the fan speed to bring the temperature down, but it (as it is evident in the output above) doesn't detect the fan. I tried to do the increasing fan_div part on the Fan speed control page but there isn't any /etc/sensors.d/sensors.conf file on the system. So no luck there...

On a side note, I also dual boot with windows 7. So, I thought maybe something is wrong with the fan... let me check on windows. So, I booted in windows and ran Lenovo's energy management's program to clear the dust from fans... it worked. I ran windows for half an hour. The system was relatively cool so I rebooted it in Linux. And observed the temperature rise in xsensors. It started from about 60 degrees and went up above 80 in about 3-5 minutes. So, clearly it's not a case of faulty readings.

If it helps, last week I did have a problem with the system that it refused to start grub. So, I chrooted and re-installed grub. It didn't work. I searched for grub in repositories and saw a grub package in testing repo. I thought, the current version is not working so let's try that. So, I installed the grub from testing repo and it worked. The problem seems to have started after that little exercise.

I also tried the lts kernel. The problems persist with both of these kernels.

⏚ [noel:~] % pacman -Q linux linux-lts
linux 3.12-1
linux-lts 3.10.19-1

Any help would be appreciated.

Last edited by Dark.Light (2013-11-20 15:07:18)

Dark.Light

Member

Registered: 2010-08-09

Posts: 19

Re: [SOLVED] Constant high temprature on Lenovo U410

Solved by downgrading systemd to version: systemd 208-1. Why didn't I think of that eariler?