www/psensor/faq.html

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 421 <div id="header">
 422 <h1>Psensor Frequently Asked Questions</h1>
 423 </div>
 424 <div id="content">
 425 <div id="preamble">
 426 <div class="sectionbody">
 427 <div class="paragraph">
 428 <p>The last version of this FAQ is available at <a href="http://wpitchoune.net/gitweb/?p=psensor.git;a=blob_plain;f=doc/faq.html;hb=HEAD" class="bare">http://wpitchoune.net/gitweb/?p=psensor.git;a=blob_plain;f=doc/faq.html;hb=HEAD</a>.</p>
 429 </div>
 430 </div>
 431 </div>
 432 <div class="sect1">
 433 <h2 id="S_NoSensors">No sensors or only cpu usage is displayed</h2>
 434 <div class="sectionbody">
 435 <div class="paragraph">
 436 <p>Psensor is relying on few libraries or softwares for retrieving the
 437 information about the computer:</p>
 438 </div>
 439 <div class="ulist">
 440 <ul>
 441 <li>
 442 <p>motherboard and CPUs sensors: the information is retrieved
 443 from the lm-sensors library, it requires that
 444 <code>sensors-detect</code> has been run and the kernel module
 445 correctly installed. <code>sensors</code> can be used for checking.</p>
 446 </li>
 447 <li>
 448 <p>GPUs: it depends on which driver you are using:</p>
 449 <div class="ulist">
 450 <ul>
 451 <li>
 452 <p>Opensource drivers (nouveau for Nvidia GPUs or
 453 radeon/ati for ATI GPUs) is used and support sensor
 454 monitoring for your GPU, the information is using
 455 lm-sensors, same steps than above.</p>
 456 </li>
 457 <li>
 458 <p>proprietary driver Nvidia: run <code>nvidia-settings</code> to
 459 check that it supports sensors monitoring.</p>
 460 </li>
 461 <li>
 462 <p>proprietary driver Catalyst/fglx: use <code>aticonfig</code> to
 463 check that it supports sensors monitoring. Important
 464 note: it requires that you are using a Psensor
 465 binary compiled with the ATI support.</p>
 466 </li>
 467 </ul>
 468 </div>
 469 </li>
 470 </ul>
 471 </div>
 472 <div class="paragraph">
 473 <p>For hard disk drives, psensor can use:</p>
 474 </div>
 475 <div class="ulist">
 476 <ul>
 477 <li>
 478 <p>udisks2: added since 1.1.2 release. It is the default and
 479 recommended provider.</p>
 480 </li>
 481 <li>
 482 <p>hddtemp: verify that it is correctly reporting temperature by
 483 using the command: <code>sudo hddtemp /dev/sda</code>. It is the default
 484 provider until 1.1.2 release.</p>
 485 </li>
 486 <li>
 487 <p>atasmart library: before the 1.1.2 release it can be enabled
 488 by using the command line option <code>--use-libatasmart</code>.</p>
 489 </li>
 490 </ul>
 491 </div>
 492 <div class="paragraph">
 493 <p>If the underlying software is reporting sensors which are not
 494 displayed by Psensor, it is probably a bug in Psensor, so please
 495 report it. Otherwise, the issue is on the underlying software itself
 496 and you should contact the corresponding development team or refer to
 497 its documentation.</p>
 498 </div>
 499 <div class="paragraph">
 500 <p>Since the release 1.1.2, the providers can be enabled or disabled directly
 501 from the user interface (<code>Preferences&gt;Provider</code>).</p>
 502 </div>
 503 </div>
 504 </div>
 505 <div class="sect1">
 506 <h2 id="S_ATIMonitoring">How to monitor an ATI card using the Catalyst driver?</h2>
 507 <div class="sectionbody">
 508 <div class="paragraph">
 509 <p>For monitoring ATI card using the proprietary Catalyst driver, Psensor
 510 must be compiled with a proprietary library which is not packaged in
 511 any Linux distribution.</p>
 512 </div>
 513 <div class="paragraph">
 514 <p>Unfortunely, due to the license of this library, I cannot provide a
 515 compiled version of Psensor, even in a Ubuntu PPA or Ubuntu/Debian
 516 standard repositories. You have to compile Psensor sensor. You can
 517 find the instructions in the section <code>ATI/AMD GPU Support</code> of the
 518 README file available in the Psensor source archives.</p>
 519 </div>
 520 <div class="paragraph">
 521 <p>If you are using the ATI OpenSource driver, it is not needed to
 522 compile Psensor with this proprietary library.</p>
 523 </div>
 524 </div>
 525 </div>
 526 <div class="sect1">
 527 <h2 id="S_WrongTemperature">The reported temperature is obviously wrong</h2>
 528 <div class="sectionbody">
 529 <div class="paragraph">
 530 <p>If the reported temperature is obviously wrong (never change, lower
 531 than the ambiant temperature, negative, higher than the sun
 532 temperature, etc):</p>
 533 </div>
 534 <div class="ulist">
 535 <ul>
 536 <li>
 537 <p>most of the time it is not a bug in Psensor nor in the
 538 underlying monitoring libraries:</p>
 539 <div class="ulist">
 540 <ul>
 541 <li>
 542 <p>if the temperature does not change, it might be due
 543 to an existent sensor not wired by the hardware
 544 manufacturer.</p>
 545 </li>
 546 <li>
 547 <p>the goal of the sensor is to allow the system to
 548 detect critical temperature and NOT to report an
 549 exact temperature. Most sensors report a relative
 550 temperature. The more it differs from the critical
 551 temperature , the more it is wrong.</p>
 552 </li>
 553 </ul>
 554 </div>
 555 </li>
 556 <li>
 557 <p>It is only a bug in Psensor if the underlying libraries
 558 report a different information than Psensor (use the
 559 appropriate command or software: <code>sensors</code>, <code>aticonfig</code> or
 560 <code>hddtemp</code> to check). In this case, please report a bug.</p>
 561 </li>
 562 </ul>
 563 </div>
 564 </div>
 565 </div>
 566 <div class="sect1">
 567 <h2 id="S_WhatIsTheSensor">What is the sensors XXXX?</h2>
 568 <div class="sectionbody">
 569 <div class="paragraph">
 570 <p>Since Psensor v0.7.0.4, open the preferences of the sensor (click on
 571 its name in the main window and select the menu item Preferences), and
 572 look at the Chip field.</p>
 573 </div>
 574 <div class="paragraph">
 575 <p>For older Psensor releases, look at the Id field, if the string is
 576 starting with:</p>
 577 </div>
 578 <div class="ulist">
 579 <ul>
 580 <li>
 581 <p><code>lmsensor coretemp</code>: Intel CPU.</p>
 582 </li>
 583 <li>
 584 <p><code>lmsensor k10temp</code>, <code>lmsensor k8temp</code>, <code>lmsensor fam15h_power</code>: AMD CPU.</p>
 585 </li>
 586 <li>
 587 <p><code>nvidia</code> or <code>lmsensor nouveau</code>: NVIDIA GPU.</p>
 588 </li>
 589 <li>
 590 <p><code>hdd</code>: hard disk drive.</p>
 591 </li>
 592 <li>
 593 <p><code>amd</code>: AMD GPU.</p>
 594 </li>
 595 <li>
 596 <p><code>lmsensor C B</code>: C is the name of the chip, B the name of the adapter.</p>
 597 </li>
 598 </ul>
 599 </div>
 600 <div class="paragraph">
 601 <p>For more information about lmsensor devices, see
 602 <a href="http://lm-sensors.org/wiki/Devices" class="bare">http://lm-sensors.org/wiki/Devices</a>.</p>
 603 </div>
 604 </div>
 605 </div>
 606 <div class="sect1">
 607 <h2 id="S_BugReport">How to report a bug?</h2>
 608 <div class="sectionbody">
 609 <div class="paragraph">
 610 <p>Please use <a href="https://bugs.launchpad.net/psensor/+filebug" class="bare">https://bugs.launchpad.net/psensor/+filebug</a> to report bugs
 611 even if it can only reproduced with a non-Ubuntu distribution or a
 612 release not available in the standard Ubuntu repositories.</p>
 613 </div>
 614 <div class="paragraph">
 615 <p>You can also use
 616 <a href="https://bugs.launchpad.net/ubuntu/+source/psensor/+filebug" class="bare">https://bugs.launchpad.net/ubuntu/+source/psensor/+filebug</a> if the bug
 617 can be reproduced with a package from the standard Ubuntu
 618 repositories.</p>
 619 </div>
 620 <div class="paragraph">
 621 <p>If you don’t want to use the launchpad, you can send the report by
 622 email to:</p>
 623 </div>
 624 <div class="ulist">
 625 <ul>
 626 <li>
 627 <p><a href="mailto:psensor-users@googlegroups.com">psensor-users@googlegroups.com</a></p>
 628 </li>
 629 <li>
 630 <p>or <a href="mailto:jeanfi@gmail.com">jeanfi@gmail.com</a>.</p>
 631 </li>
 632 </ul>
 633 </div>
 634 <div class="paragraph">
 635 <p>If the bug is concerning Debian or Ubuntu derivatives distribution,
 636 please add in its description the output of the command: <code>apt-cache
 637 policy psensor</code>.</p>
 638 </div>
 639 <div class="paragraph">
 640 <p>If it is related to the Psensor source compilation, please add the
 641 full output of the <code>configure</code> command.</p>
 642 </div>
 643 </div>
 644 </div>
 645 <div class="sect1">
 646 <h2 id="S_SubmitIdea">How to send ideas, questions or comments?</h2>
 647 <div class="sectionbody">
 648 <div class="paragraph">
 649 <p>Check the FAQ or the TODO pages.</p>
 650 </div>
 651 <div class="paragraph">
 652 <p>If you don’t find the information, you can send an email to the public
 653 mailing-list <a href="mailto:psensor-users@googlegroups.com">psensor-users@googlegroups.com</a> or directly to me:
 654 <a href="mailto:jeanfi@gmail.com">jeanfi@gmail.com</a>.</p>
 655 </div>
 656 </div>
 657 </div>
 658 <div class="sect1">
 659 <h2 id="S_Contribute">How to contribute?</h2>
 660 <div class="sectionbody">
 661 <div class="paragraph">
 662 <p>See <a href="http://wpitchoune.net/blog/psensor/how-to-contribute/" class="bare">http://wpitchoune.net/blog/psensor/how-to-contribute/</a>.</p>
 663 </div>
 664 </div>
 665 </div>
 666 <div class="sect1">
 667 <h2 id="S_UbuntuInstall">How to install Psensor on Ubuntu?</h2>
 668 <div class="sectionbody">
 669 <div class="paragraph">
 670 <p>Psensor is in the official repository, search <code>psensor</code> in the
 671 software center and install it. More information at:
 672 <a href="http://wpitchoune.net/blog/psensor/ubuntu-integration/" class="bare">http://wpitchoune.net/blog/psensor/ubuntu-integration/</a>.</p>
 673 </div>
 674 </div>
 675 </div>
 676 <div class="sect1">
 677 <h2 id="S_DebianInstall">How to install Psensor on Debian?</h2>
 678 <div class="sectionbody">
 679 <div class="paragraph">
 680 <p>Psensor is in the official repository since Debian 7.0. You can get
 681 the last packaged version from the sid repository. More information
 682 at: <a href="http://packages.qa.debian.org/p/psensor.html" class="bare">http://packages.qa.debian.org/p/psensor.html</a>.</p>
 683 </div>
 684 </div>
 685 </div>
 686 <div class="sect1">
 687 <h2 id="S_PPA">What is the difference between the 3 Ubuntu PPAs?</h2>
 688 <div class="sectionbody">
 689 <div class="ulist">
 690 <ul>
 691 <li>
 692 <p><code>ppa:jfi/ppa</code>: last stable version.</p>
 693 </li>
 694 <li>
 695 <p><code>ppa:jfi/psensor-unstable</code>: last development version, no
 696 major bug is expected.</p>
 697 </li>
 698 <li>
 699 <p><code>ppa:jfi/psensor-daily-trunk</code>: build each day directly from
 700 the GIT source repository. It may contain major bugs or
 701 incomplete features. Useful for contributors or testing
 702 whether a bug is fixed.</p>
 703 </li>
 704 </ul>
 705 </div>
 706 </div>
 707 </div>
 708 <div class="sect1">
 709 <h2 id="S_ArchLinuxInstall">How to install Psensor on ArchLinux?</h2>
 710 <div class="sectionbody">
 711 <div class="paragraph">
 712 <p>See <a href="http://aur.archlinux.org/packages.php?ID=37807" class="bare">http://aur.archlinux.org/packages.php?ID=37807</a>.</p>
 713 </div>
 714 </div>
 715 </div>
 716 <div class="sect1">
 717 <h2 id="S_OtherInstall">How to install Psensor on my Linux distribution?</h2>
 718 <div class="sectionbody">
 719 <div class="paragraph">
 720 <p>Psensor packages are available in the standard repositories of Ubuntu
 721 (since Oneiric) and Debian (since v7) distributions.</p>
 722 </div>
 723 <div class="paragraph">
 724 <p>For other distributions, you will find the compilation and
 725 installation instructions in the section <code>Installation from source
 726 archive</code> in the README file of the source archive. Psensor should
 727 compile in any modern distribution.</p>
 728 </div>
 729 </div>
 730 </div>
 731 <div class="sect1">
 732 <h2 id="S_LOG">How to log sensors temperatures?</h2>
 733 <div class="sectionbody">
 734 <div class="paragraph">
 735 <p>The best way is probably to use sensord or a custom script based on
 736 the output of the different commands like <code>sensors</code>.</p>
 737 </div>
 738 <div class="paragraph">
 739 <p>Anyway, as I received several requests about such feature, since the
 740 0.7.0.4 release it is implemented in both psensor ( menu preferences &gt;
 741 sensors &gt; enable log of measures) and psensor-server
 742 (<code>--sensor-log-file</code> option). For psensor the log file is
 743 <code>$HOME/.psensor/sensors.log</code>.</p>
 744 </div>
 745 </div>
 746 </div>
 747 <div class="sect1">
 748 <h2 id="S_NO_GRAPH_DISPLAYED">No graphs are displayed, but the table of the main window is displaying sensors</h2>
 749 <div class="sectionbody">
 750 <div class="paragraph">
 751 <p>In the sensors table of the main window, switch on the checkbox of the last
 752 column (named <code>Enabled</code> or <code>Graph</code> depending on the Psensor version).</p>
 753 </div>
 754 </div>
 755 </div>
 756 <div class="sect1">
 757 <h2 id="S_autostart">Launch Psensor automaticaly on session startup</h2>
 758 <div class="sectionbody">
 759 <div class="paragraph">
 760 <p>Since the version 1.0.1, Psensor is no more started automaticaly by default.</p>
 761 </div>
 762 <div class="paragraph">
 763 <p>Open the <code>Preferences</code> window, select the <code>Startup</code> tab and switch on
 764 the option <code>Launch on session startup</code>.</p>
 765 </div>
 766 <div class="paragraph">
 767 <p>This feature is requiring that the Desktop Environment supports the
 768 <a href="http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html">XDG
 769 specification</a>.</p>
 770 </div>
 771 </div>
 772 </div>
 773 <div class="sect1">
 774 <h2 id="S_disk">How to monitor the temperature of a disk with <code>hddtemp</code>?</h2>
 775 <div class="sectionbody">
 776 <div class="paragraph">
 777 <p>Until the release 1.1.2, Psensor is using <code>hddtemp</code> by default to
 778 retrieve the temperature of the disks.</p>
 779 </div>
 780 <div class="paragraph">
 781 <p>If <code>hddtemp</code> is installed but no disk temperature is reported, check
 782 that the daemon is running by using for example the command <code>ps
 783 -eaf|grep hddtemp</code>.
 784 It should output something like:</p>
 785 </div>
 786 <div class="listingblock">
 787 <div class="content">
 788 <pre>root      1433     1  0 May28 ?        00:00:21 /usr/sbin/hddtemp -d -l 127.0.0.1 -p 7634 -s | /dev/sdb</pre>
 789 </div>
 790 </div>
 791 <div class="paragraph">
 792 <p>Depending on the Linux distribution, the installation of the <code>hddtemp</code>
 793 package does not enable the hddtemp daemon automaticaly.</p>
 794 </div>
 795 <div class="paragraph">
 796 <p>In this case, edit the file <code>/etc/default/hddtemp</code> and set
 797 <code>RUN_DAEMON</code> to <code>"true"</code>. After edition, it should contain the
 798 following line:</p>
 799 </div>
 800 <div class="listingblock">
 801 <div class="content">
 802 <pre>RUN_DAEMON="true"</pre>
 803 </div>
 804 </div>
 805 <div class="paragraph">
 806 <p>For Debian/Ubuntu, you can use at root:</p>
 807 </div>
 808 <div class="listingblock">
 809 <div class="content">
 810 <pre>dpkg-reconfigure hddtemp</pre>
 811 </div>
 812 </div>
 813 <div class="paragraph">
 814 <p>and reply <code>yes</code> when asked whether hddtemp daemon must be
 815 run during the startup.</p>
 816 </div>
 817 </div>
 818 </div>
 819 <div class="sect1">
 820 <h2 id="S_SimilarSoft">Is there any other similar softwares?</h2>
 821 <div class="sectionbody">
 822 <div class="paragraph">
 823 <p>Here is a list of few well-known sensors monitoring softwares:</p>
 824 </div>
 825 <div class="ulist">
 826 <ul>
 827 <li>
 828 <p>for X11: <a href="http://freecode.com/projects/xsensors" class="bare">http://freecode.com/projects/xsensors</a></p>
 829 </li>
 830 <li>
 831 <p>for GNOME2: <a href="http://sensors-applet.sourceforge.net/" class="bare">http://sensors-applet.sourceforge.net/</a></p>
 832 </li>
 833 <li>
 834 <p>for Ubuntu Unity: <a href="https://launchpad.net/indicator-sensors" class="bare">https://launchpad.net/indicator-sensors</a></p>
 835 </li>
 836 <li>
 837 <p>more general, but can be configured to display sensors
 838 information: <a href="http://conky.sourceforge.net/" class="bare">http://conky.sourceforge.net/</a></p>
 839 </li>
 840 </ul>
 841 </div>
 842 </div>
 843 </div>
 844 <div class="sect1">
 845 <h2 id="S_HideSensor">Is it possible to hide sensors in the main window?</h2>
 846 <div class="sectionbody">
 847 <div class="paragraph">
 848 <p>Before v1.1.1, the sensors retrieved from the lm-sensor library can be
 849 ignored directly in the lm-sensor configuration. See the manpage
 850 of sensors.conf(5).</p>
 851 </div>
 852 <div class="paragraph">
 853 <p>Since v1.1.1, it is possible to hide a sensor, uncheck the setting
 854 <em>Display sensor in the list of sensors</em> in the sensor preferences.</p>
 855 </div>
 856 </div>
 857 </div>
 858 </div>
 859 <div id="footer">
 860 <div id="footer-text">
 861 Last updated 2016-06-10 11:21:52 CEST
 862 </div>
 863 </div>
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 865 </html>