The last version of this FAQ is available at http://wpitchoune.net/gitweb/?p=psensor.git;a=blob_plain;f=doc/faq.html;hb=HEAD.
-1. No sensors or only cpu usage is displayed
-Psensor is relying on few libraries or softwares for retrieving the -information about the computer:
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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.
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GPUs: it depends on which driver you are using:
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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.
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proprietary driver Nvidia: run nvidia-settings to -check that it supports sensors monitoring.
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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.
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For hard disk drives, psensor can use:
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udisks2: added since 1.1.2 release. It is the default and -recommended provider.
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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.
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atasmart library: before the 1.1.2 release it can be enabled -by using the command line option --use-libatasmart.
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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.
-Since the release 1.1.2, the providers can be enabled or disabled directly -from the user interface (Preferences>Provider).
-2. How to monitor an ATI card using the Catalyst driver?
-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.
-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.
-If you are using the ATI OpenSource driver, it is not needed to -compile Psensor with this proprietary library.
-3. The reported temperature is obviously wrong
-If the reported temperature is obviously wrong (never change, lower -than the ambiant temperature, negative, higher than the sun -temperature, etc):
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most of the time it is not a bug in Psensor nor in the -underlying monitoring libraries:
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if the temperature does not change, it might be due -to an existent sensor not wired by the hardware -manufacturer.
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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.
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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.
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4. What is the sensors XXXX?
-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.
-For older Psensor releases, look at the Id field, if the string is -starting with:
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lmsensor coretemp: Intel CPU.
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lmsensor k10temp, lmsensor k8temp, lmsensor fam15h_power: AMD CPU.
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nvidia or lmsensor nouveau: NVIDIA GPU.
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hdd: hard disk drive.
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amd: AMD GPU.
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lmsensor C B: C is the name of the chip, B the name of the adapter.
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For more information about lmsensor devices, see -http://lm-sensors.org/wiki/Devices.
-5. How to report a bug?
-Please use https://bugs.launchpad.net/psensor/+filebug to report bugs -even if it can only reproduced with a non-Ubuntu distribution or a -release not available in the standard Ubuntu repositories.
-You can also use -https://bugs.launchpad.net/ubuntu/+source/psensor/+filebug if the bug -can be reproduced with a package from the standard Ubuntu -repositories.
-If you donât want to use the launchpad, you can send the report by -email to:
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or jeanfi@gmail.com.
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If the bug is concerning Debian or Ubuntu derivatives distribution, -please add in its description the output of the command: apt-cache -policy psensor.
-If it is related to the Psensor source compilation, please add the -full output of the configure command.
-6. How to send ideas, questions or comments?
-Check the FAQ or the TODO pages.
-If you donât find the information, you can send an email to the public -mailing-list psensor-users@googlegroups.com or directly to me: -jeanfi@gmail.com.
-7. How to contribute?
- -8. How to install Psensor on Ubuntu?
-Psensor is in the official repository, search psensor in the -software center and install it. More information at: -http://wpitchoune.net/blog/psensor/ubuntu-integration/.
-9. How to install Psensor on Debian?
-Psensor is in the official repository since Debian 7.0. You can get -the last packaged version from the sid repository. More information -at: http://packages.qa.debian.org/p/psensor.html.
-10. What is the difference between the 3 Ubuntu PPAs?
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ppa:jfi/ppa: last stable version.
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ppa:jfi/psensor-unstable: last development version, no -major bug is expected.
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ppa:jfi/psensor-daily-trunk: build each day directly from -the GIT source repository. It may contain major bugs or -incomplete features. Useful for contributors or testing -whether a bug is fixed.
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11. How to install Psensor on ArchLinux?
-12. How to install Psensor on my Linux distribution?
-Psensor packages are available in the standard repositories of Ubuntu -(since Oneiric) and Debian (since v7) distributions.
-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.
-13. How to log sensors temperatures?
-The best way is probably to use sensord or a custom script based on -the output of the different commands like sensors.
-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.
-14. No graphs are displayed, but the table of the main window is displaying sensors
-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).
-15. Launch Psensor automaticaly on session startup
-Since the version 1.0.1, Psensor is no more started automaticaly by default.
-Open the Preferences window, select the Startup tab and switch on -the option Launch on session startup.
-This feature is requiring that the Desktop Environment supports the -XDG -specification.
-16. How to monitor the temperature of a disk with hddtemp?
-Until the release 1.1.2, Psensor is using hddtemp by default to -retrieve the temperature of the disks.
-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:
-root 1433 1 0 May28 ? 00:00:21 /usr/sbin/hddtemp -d -l 127.0.0.1 -p 7634 -s | /dev/sdb-
Depending on the Linux distribution, the installation of the hddtemp -package does not enable the hddtemp daemon automaticaly.
-In this case, edit the file /etc/default/hddtemp and set -RUN_DAEMON to "true". After edition, it should contain the -following line:
-RUN_DAEMON="true"-
For Debian/Ubuntu, you can use at root:
-dpkg-reconfigure hddtemp-
and reply yes when asked whether hddtemp daemon must be -run during the startup.
-17. Is there any other similar softwares?
-Here is a list of few well-known sensors monitoring softwares:
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for GNOME2: http://sensors-applet.sourceforge.net/
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for Ubuntu Unity: https://launchpad.net/indicator-sensors
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more general, but can be configured to display sensors -information: http://conky.sourceforge.net/
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18. Is it possible to hide sensors in the main window?
-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).
-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.
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