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Fedora 20 laptop overheating and short battery life

asked 2014-09-11 06:07:06 -0500

geered gravatar image

updated 2014-09-11 10:11:06 -0500

mether gravatar image

Hello! I've got a HP ProBook 4540s with Fedora 20 installed (kernel 3.15.10) and I'm facing multiple issues.

Laptop specs:

CPU: Intel i3-3110M (GPU: Intel HD 4000)


SSD: Samsung 840 EVO - 120GB

#1 Overheating

My laptop gets unusually hot while running Fedora. It didn't get that hot when I was using Windows.

Things I've done so far:

  • I've installed powertop, tlp, lm_sensors and acpi.x86_64
  • I've "tuned" the system as powertop recommended

I'm not sure if the fans are working as they should. Also, it looks like they work only while tlp is running (or the laptop is running on AC power). I have no idea how to check if the fans work correctly.

Is it possible to somehow do this: if temperature is higher than... 35C run fans at 50% if 40C 100% etc. etc..

#2 Battery life

The battery doesn't last as long as it used on Windows. First thing I tried was reducing screen brightness, but it didn't want to do so. By following this guide I've fixed the problem (or this one. Not sure which one worked). So the battery should last a bit longer now.

I'm currently looking into udev rules.

Any ideas how to configure tlp, udev rules or anything to make the battery last longer?

Thank you so much for your help!


I think I'll also install tuned. Hopefully it won't have conflicts with ltp

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Same problem in my Samsung AMD A-8 Quad Core Laptop

How to fix it

Munu gravatar imageMunu ( 2014-11-11 08:22:33 -0500 )edit

2 Answers

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answered 2014-09-13 12:32:37 -0500

jmcknight gravatar image

The first thing I'd recommend looking at is checking top to see if something in the background is running with a lot of CPU that's causing overheating and reduced battery life. I just don't see why a Core i3 would be overheating like this unless you had some process chewing through your system constantly.

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answered 2014-11-11 09:57:29 -0500

Mehran gravatar image

It's an old kernel. maybe updating fedora will fix your problems:

  yum update

If the problem still resisted try to install intel proprietary dgraphic drivers:

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Intel's drivers are not proprietary. They are permissively licensed and go directly into the Linux kernel. Fedora uses the linux kernel. Adding this just introduces potential conflicts.

randomuser gravatar imagerandomuser ( 2014-11-11 12:10:14 -0500 )edit

If this's the case, why intel have provided repos for fedora users?

Mehran gravatar imageMehran ( 2014-11-11 12:14:27 -0500 )edit

They probably have a different release schedule.

randomuser gravatar imagerandomuser ( 2014-11-11 12:19:40 -0500 )edit

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Asked: 2014-09-11 06:07:06 -0500

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Last updated: Nov 11 '14