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</head>
<body class="article">
<div id="header">
<h1>Psensor Frequently Asked Questions</h1>
<div id="toc" class="toc">
<div id="toctitle">Table of Contents</div>
<ul class="sectlevel1">
<li><a href="#S_NoSensors">1. No sensors or only cpu usage is displayed</a></li>
<li><a href="#S_ATIMonitoring">2. How to monitor an ATI card using the Catalyst driver?</a></li>
<li><a href="#S_WrongTemperature">3. The reported temperature is obviously wrong</a></li>
<li><a href="#S_WhatIsTheSensor">4. What is the sensors XXXX?</a></li>
<li><a href="#S_BugReport">5. How to report a bug?</a></li>
<li><a href="#S_SubmitIdea">6. How to send ideas, questions or comments?</a></li>
<li><a href="#S_Contribute">7. How to contribute?</a></li>
<li><a href="#S_UbuntuInstall">8. How to install Psensor on Ubuntu?</a></li>
<li><a href="#S_DebianInstall">9. How to install Psensor on Debian?</a></li>
<li><a href="#S_ArchLinuxInstall">10. How to install Psensor on ArchLinux?</a></li>
<li><a href="#S_OtherInstall">11. How to install Psensor on my Linux distribution?</a></li>
<li><a href="#S_LOG">12. How to log sensors temperatures?</a></li>
<li><a href="#S_NO_GRAPH_DISPLAYED">13. No graphs are displayed, but the table of the main window is displaying sensors</a></li>
<li><a href="#S_autostart">14. Launch Psensor automaticaly on session startup</a></li>
<li><a href="#S_disk">15. How to monitor the temperature of a disk with hddtemp?</a></li>
<li><a href="#S_SimilarSoft">16. Is there any other similar softwares?</a></li>
<li><a href="#S_HideSensor">17. Is it possible to hide sensors in the main window?</a></li>
</ul>
</div>
</div>
<div id="content">
<div id="preamble">
<div class="sectionbody">
<div class="paragraph">
<p>The last version of this FAQ is available at <a href="https://gitlab.com/jeanfi/psensor/blob/master/doc/faq.txt" class="bare">https://gitlab.com/jeanfi/psensor/blob/master/doc/faq.txt</a></p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="S_NoSensors">1. No sensors or only cpu usage is displayed</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Psensor is relying on few libraries or softwares for retrieving the
information about the computer:</p>
</div>
<div class="ulist">
<ul>
<li>
<p>motherboard and CPUs sensors: the information is retrieved
from the lm-sensors library, it requires that
sensors-detect has been run and the kernel module
correctly installed. sensors can be used for checking.</p>
</li>
<li>
<p>GPUs: it depends on which driver you are using:</p>
<div class="ulist">
<ul>
<li>
<p>Opensource drivers (nouveau for Nvidia GPUs or
radeon/ati for ATI GPUs) is used and support sensor
monitoring for your GPU, the information is using
lm-sensors, same steps than above.</p>
</li>
<li>
<p>proprietary driver Nvidia: run nvidia-settings to
check that it supports sensors monitoring.</p>
</li>
<li>
<p>proprietary driver Catalyst/fglx: use aticonfig to
check that it supports sensors monitoring. Important
note: it requires that you are using a Psensor
binary compiled with the ATI support.</p>
</li>
</ul>
</div>
</li>
</ul>
</div>
<div class="paragraph">
<p>For hard disk drives, psensor can use:</p>
</div>
<div class="ulist">
<ul>
<li>
<p>udisks2: added since 1.1.2 release. It is the default and
recommended provider.</p>
</li>
<li>
<p>hddtemp: verify that it is correctly reporting temperature by
using the command: sudo hddtemp /dev/sda. It is the default
provider until 1.1.2 release.</p>
</li>
<li>
<p>atasmart library: before the 1.1.2 release it can be enabled
by using the command line option --use-libatasmart.</p>
</li>
</ul>
</div>
<div class="paragraph">
<p>If the underlying software is reporting sensors which are not
displayed by Psensor, it is probably a bug in Psensor, so please
report it. Otherwise, the issue is on the underlying software itself
and you should contact the corresponding development team or refer to
its documentation.</p>
</div>
<div class="paragraph">
<p>Since the release 1.1.2, the providers can be enabled or disabled directly
from the user interface (Preferences>Provider).</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="S_ATIMonitoring">2. How to monitor an ATI card using the Catalyst driver?</h2>
<div class="sectionbody">
<div class="paragraph">
<p>For monitoring ATI card using the proprietary Catalyst driver, Psensor
must be compiled with a proprietary library which is not packaged in
any Linux distribution.</p>
</div>
<div class="paragraph">
<p>Unfortunely, due to the license of this library, I cannot provide a
compiled version of Psensor, even in a Ubuntu PPA or Ubuntu/Debian
standard repositories. You have to compile Psensor sensor. You can
find the instructions in the section ATI/AMD GPU Support of the
README file available in the Psensor source archives.</p>
</div>
<div class="paragraph">
<p>If you are using the ATI OpenSource driver, it is not needed to
compile Psensor with this proprietary library.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="S_WrongTemperature">3. The reported temperature is obviously wrong</h2>
<div class="sectionbody">
<div class="paragraph">
<p>If the reported temperature is obviously wrong (never change, lower
than the ambiant temperature, negative, higher than the sun
temperature, etc):</p>
</div>
<div class="ulist">
<ul>
<li>
<p>most of the time it is not a bug in Psensor nor in the
underlying monitoring libraries:</p>
<div class="ulist">
<ul>
<li>
<p>if the temperature does not change, it might be due
to an existent sensor not wired by the hardware
manufacturer.</p>
</li>
<li>
<p>the goal of the sensor is to allow the system to
detect critical temperature and NOT to report an
exact temperature. Most sensors report a relative
temperature. The more it differs from the critical
temperature , the more it is wrong.</p>
</li>
</ul>
</div>
</li>
<li>
<p>It is only a bug in Psensor if the underlying libraries
report a different information than Psensor (use the
appropriate command or software: sensors, aticonfig or
hddtemp to check). In this case, please report a bug.</p>
</li>
</ul>
</div>
</div>
</div>
<div class="sect1">
<h2 id="S_WhatIsTheSensor">4. What is the sensors XXXX?</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Since Psensor v0.7.0.4, open the preferences of the sensor (click on
its name in the main window and select the menu item Preferences), and
look at the Chip field.</p>
</div>
<div class="paragraph">
<p>For older Psensor releases, look at the Id field, if the string is
starting with:</p>
</div>
<div class="ulist">
<ul>
<li>
<p>lmsensor coretemp: Intel CPU.</p>
</li>
<li>
<p>lmsensor k10temp, lmsensor k8temp, lmsensor fam15h_power: AMD CPU.</p>
</li>
<li>
<p>nvidia or lmsensor nouveau: NVIDIA GPU.</p>
</li>
<li>
<p>hdd: hard disk drive.</p>
</li>
<li>
<p>amd: AMD GPU.</p>
</li>
<li>
<p>lmsensor C B: C is the name of the chip, B the name of the adapter.</p>
</li>
</ul>
</div>
<div class="paragraph">
<p>For more information about lmsensor devices, see
<a href="http://lm-sensors.org/wiki/Devices" class="bare">http://lm-sensors.org/wiki/Devices</a>.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="S_BugReport">5. How to report a bug?</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Please use <a href="https://bugs.launchpad.net/psensor/+filebug" class="bare">https://bugs.launchpad.net/psensor/+filebug</a> to report bugs
even if it can only reproduced with a non-Ubuntu distribution or a
release not available in the standard Ubuntu repositories.</p>
</div>
<div class="paragraph">
<p>You can also use
<a href="https://bugs.launchpad.net/ubuntu/+source/psensor/+filebug" class="bare">https://bugs.launchpad.net/ubuntu/+source/psensor/+filebug</a> if the bug
can be reproduced with a package from the standard Ubuntu
repositories.</p>
</div>
<div class="paragraph">
<p>If you don’t want to use the launchpad, you can send the report by
email to:</p>
</div>
<div class="ulist">
<ul>
<li>
<p><a href="mailto:psensor-users@googlegroups.com">psensor-users@googlegroups.com</a></p>
</li>
<li>
<p>or <a href="mailto:jeanfi@gmail.com">jeanfi@gmail.com</a>.</p>
</li>
</ul>
</div>
<div class="paragraph">
<p>If the bug is concerning Debian or Ubuntu derivatives distribution,
please add in its description the output of the command: apt-cache
policy psensor.</p>
</div>
<div class="paragraph">
<p>If it is related to the Psensor source compilation, please add the
full output of the configure command.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="S_SubmitIdea">6. How to send ideas, questions or comments?</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Check the FAQ or the TODO pages.</p>
</div>
<div class="paragraph">
<p>If you don’t find the information, you can send an email to the public
mailing-list <a href="mailto:psensor-users@googlegroups.com">psensor-users@googlegroups.com</a> or directly to me:
<a href="mailto:jeanfi@gmail.com">jeanfi@gmail.com</a>.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="S_Contribute">7. How to contribute?</h2>
<div class="sectionbody">
<div class="paragraph">
<p>See <a href="http://wpitchoune.net/blog/psensor/how-to-contribute/" class="bare">http://wpitchoune.net/blog/psensor/how-to-contribute/</a>.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="S_UbuntuInstall">8. How to install Psensor on Ubuntu?</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Psensor is in the official repository, search psensor in the
software center and install it. More information at:
<a href="http://wpitchoune.net/blog/psensor/ubuntu-integration/" class="bare">http://wpitchoune.net/blog/psensor/ubuntu-integration/</a>.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="S_DebianInstall">9. How to install Psensor on Debian?</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Psensor is in the official repository since Debian 7.0. You can get
the last packaged version from the sid repository. More information
at: <a href="http://packages.qa.debian.org/p/psensor.html" class="bare">http://packages.qa.debian.org/p/psensor.html</a>.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="S_ArchLinuxInstall">10. How to install Psensor on ArchLinux?</h2>
<div class="sectionbody">
<div class="paragraph">
<p>See <a href="http://aur.archlinux.org/packages.php?ID=37807" class="bare">http://aur.archlinux.org/packages.php?ID=37807</a>.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="S_OtherInstall">11. How to install Psensor on my Linux distribution?</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Psensor packages are available in the standard repositories of Ubuntu
(since Oneiric) and Debian (since v7) distributions.</p>
</div>
<div class="paragraph">
<p>For other distributions, you will find the compilation and
installation instructions in the section Installation from source
archive in the README file of the source archive. Psensor should
compile in any modern distribution.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="S_LOG">12. How to log sensors temperatures?</h2>
<div class="sectionbody">
<div class="paragraph">
<p>The best way is probably to use sensord or a custom script based on
the output of the different commands like sensors.</p>
</div>
<div class="paragraph">
<p>Anyway, as I received several requests about such feature, since the
0.7.0.4 release it is implemented in both psensor ( menu preferences >
sensors > enable log of measures) and psensor-server
(--sensor-log-file option). For psensor the log file is
$HOME/.psensor/sensors.log.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="S_NO_GRAPH_DISPLAYED">13. No graphs are displayed, but the table of the main window is displaying sensors</h2>
<div class="sectionbody">
<div class="paragraph">
<p>In the sensors table of the main window, switch on the checkbox of the last
column (named Enabled or Graph depending on the Psensor version).</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="S_autostart">14. Launch Psensor automaticaly on session startup</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Since the version 1.0.1, Psensor is no more started automaticaly by default.</p>
</div>
<div class="paragraph">
<p>Open the Preferences window, select the Startup tab and switch on
the option Launch on session startup.</p>
</div>
<div class="paragraph">
<p>This feature is requiring that the Desktop Environment supports the
<a href="http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html">XDG
specification</a>.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="S_disk">15. How to monitor the temperature of a disk with hddtemp?</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Until the release 1.1.2, Psensor is using hddtemp by default to
retrieve the temperature of the disks.</p>
</div>
<div class="paragraph">
<p>If hddtemp is installed but no disk temperature is reported, check
that the daemon is running by using for example the command ps
-eaf|grep hddtemp.
It should output something like:</p>
</div>
<div class="listingblock">
<div class="content">
<pre>root 1433 1 0 May28 ? 00:00:21 /usr/sbin/hddtemp -d -l 127.0.0.1 -p 7634 -s | /dev/sdb</pre>
</div>
</div>
<div class="paragraph">
<p>Depending on the Linux distribution, the installation of the hddtemp
package does not enable the hddtemp daemon automaticaly.</p>
</div>
<div class="paragraph">
<p>In this case, edit the file /etc/default/hddtemp and set
RUN_DAEMON to "true". After edition, it should contain the
following line:</p>
</div>
<div class="listingblock">
<div class="content">
<pre>RUN_DAEMON="true"</pre>
</div>
</div>
<div class="paragraph">
<p>For Debian/Ubuntu, you can use at root:</p>
</div>
<div class="listingblock">
<div class="content">
<pre>dpkg-reconfigure hddtemp</pre>
</div>
</div>
<div class="paragraph">
<p>and reply yes when asked whether hddtemp daemon must be
run during the startup.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="S_SimilarSoft">16. Is there any other similar softwares?</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Here is a list of few well-known sensors monitoring softwares:</p>
</div>
<div class="ulist">
<ul>
<li>
<p>for X11: <a href="http://freecode.com/projects/xsensors" class="bare">http://freecode.com/projects/xsensors</a></p>
</li>
<li>
<p>for GNOME2: <a href="http://sensors-applet.sourceforge.net/" class="bare">http://sensors-applet.sourceforge.net/</a></p>
</li>
<li>
<p>for Ubuntu Unity: <a href="https://launchpad.net/indicator-sensors" class="bare">https://launchpad.net/indicator-sensors</a></p>
</li>
<li>
<p>more general, but can be configured to display sensors
information: <a href="http://conky.sourceforge.net/" class="bare">http://conky.sourceforge.net/</a></p>
</li>
</ul>
</div>
</div>
</div>
<div class="sect1">
<h2 id="S_HideSensor">17. Is it possible to hide sensors in the main window?</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Before v1.1.1, the sensors retrieved from the lm-sensor library can be
ignored directly in the lm-sensor configuration. See the manpage
of sensors.conf(5).</p>
</div>
<div class="paragraph">
<p>Since v1.1.1, it is possible to hide a sensor, uncheck the setting
'Display sensor in the list of sensors' in the sensor preferences.</p>
</div>
</div>
</div>
</div>
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Last updated 2018-10-19 23:25:17 CEST
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