Posts Tagged ‘lenovo thinkpad’

Disable bluetooth on Linux IBM / Lenovo Thinkpad laptops

Thursday, February 14th, 2013

bluetooth gnu linux disable bluetooth linux how to tux logo bluetooth thinkpad

I have a Debian GNU / Linux squeeze with bluetooth and bluetooth is started automatically on system boot. This is pretty annoying, cause I use bluetooth quite rarely.
 disable / enable bluetooth via terminal is controlled via Linux sysfs virtual filesystem. The command to disable bluetooth one time is:

debian:~# echo 0 > /sys/devices/platform/thinkpad_acpi/bluetooth_enable

It is efficient in terms of energy saving especially if you use often your notebook on battery to turn off bluetooth permanently and only enable it when needed with:

debian:~# echo 1 > /sys/devices/platform/thinkpad_acpi/bluetooth_enable

To permanently disable bluetooth on Linux boot use:

# service bluetooth stop

In /etc/rc.local before exit 0 line place:

echo 0 > /sys/devices/platform/thinkpad_acpi/bluetooth_enable

An alternative method to permanently disable bluetooth (on other non-Thinkpad – any brand laptops) is via rfkill (bluetooth device control interface), on Ubuntu rfkill is installed by default but Debian users has to explicitly install it via apt:

debian:~# apt-get install –yes rfkill

Once rfkill is installed on host put a line before exit 0 in /etc/local:

rfkill block bluetooth
 

Controlling fan with Thinkfan on Lenovo Thinkpad R61 on Debian GNU/Linux (adjusting proper fan cycling)

Saturday, August 7th, 2010

Some time ago before I have blogged about How to properly control your Lenovo Thinkpad R61 fan rotation cycles on Linux with ThinkFan
In this tiny article I have explained my previous obstacles of making my Notebook CPU cooling fan to properly rotate and cool up my Central Processing Unit.

However just recently I’ve upgraded my Debian Unstable – Squeeze/Sid through the apt-get manager to the newest possible package updates.
The upgraded bundle of packages also updated my sid thinkfan package to:

hipo@noah:~$ dpkg -l |grep -i thinkfan
ii thinkfan 0.7.1-1 simple and lightweight fan control program

I was unpleasently suprised when I tried to restart thinkfan using the thinkfan init.d script I have used until recently /etc/init.d/thinkfan , cause /etc/init.d/thinkfan was no longer be.

Furthermore I give a try to directly launch the thinkfan daemon from the terminal trying to backround the service, like so:

noah:~# thinkfan &
WARNING: Using default temperature inputs in /proc/acpi/ibm/thermal.
WARNING: You have not provided any correction values for any sensor, and your fan will only start at 55 °C. This can be dangerous for your hard drive.

Though this started up the thinkfan daemon as you can see the note in the message below it started up with a consistent cycling cooling to keep the CPU wamrth sticked to 55 ° degrees:
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Show / Restore missing Gimp 2.8 Toolbox Menu on Debian Wheezy 7.0 Linux

Tuesday, May 28th, 2013

After installing latest Debian Wheezy Linux on my Lenovo Thinkpad Notebook. One of first packages after very basic GNOME install was of course GIMP.

I edit images with GIMP mostly on daily basis, so life without GIMP is impossible…
Debian 7 comes with shiny new version of GIMP – GIMP 2.8. So far so good, but the problem is when started it for a first time, the default configuration is made in a way that it miss essential Gimp Panel Window (The Toolbox Window). Missing Brushes and selectors, move, scissors etc. is something really terrible.

My first guess was I can display it somehow from GIMP's View menu but after few minutes of try/errs I figured out this is not possible.

One menu I managed to displayed Toolbox in some mostly unusubale form, since they were not fitting well my 1024×768 resolution screen is via menus:

Windows -> Toolbox

Since this wasn't what I was looking for I spend some 10 minutes until I finally found "the fix". from menus:

Preferences -> Window Management -> Reset Saved Window Positions to Default Values

gimp 2.8 preferences menu screenshot debian gnu linux 7 wheeze screenshot

gimp 2.8 preferences menu restore saved window position to default values screenshot / display missing GIMP menus