lxpanel resource monitor applet: "RAM usage: 0.0MB (0.00%)"

[Tadas]

Looks like same issue was described here:
http://sourceforge.net/p/lxde/bugs/651/
The RAM usage graph in the resource monitor of Lxpanel is at zero. The LXde task manager as well as other tools, like top or free, report the correct values. Hovering over it with the mouse, it says "RAM usage: 0.0MB (0.00%)"

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: lxpanel 0.6.1-0ubuntu3
ProcVersionSignature: Ubuntu 3.16.0-30.40~14.04.1-generic 3.16.7-ckt3
Uname: Linux 3.16.0-30-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.7
Architecture: amd64
CasperVersion: 1.340
Config_Home_Lubuntu:
 [Command]
 FileManager=lxsession-default filemanager
 Terminal=lxsession-default terminal
 Logout=lxsession-default quit
CurrentDesktop: LXDE
Date: Mon Feb 23 06:10:45 2015
ExecutablePath: /usr/bin/lxpanel
LiveMediaBuild: Lubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: lxpanel
UpgradeStatus: No upgrade log present (probably fresh install)

[Tadas (tadslot)]

Just to mention this bug was introduced in 14.04.2. It was not in 14.04.1.

[Cedo (cedo-nik)]

Problem is introduced with kernels newer than 3.13, like 3.16, 3.19.

[Simon Quigley (tsimonq2)]

This caught my eye :P

Did you try a reboot? I know it seems obvious, but when I add that applet, I always need to do a reboot.

[Chris Wyatt (wyattmeister)]

I have the same problem, and it persists after a reboot

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Chris Wyatt (wyattmeister)]

Worth mentioning I have an Intel 64-bit machine, with 16 GB of RAM

[denisfrm (denisfrm)]

Same thing on my computer.
-Computer-
Processor : 2x Intel(R) Core(TM)2 Duo CPU E7500 @ 2.93GHz
Memory : 3940MB (2136MB used)
Operating System : Ubuntu 14.04.3 LTS
Date/Time : Ter 19 Jan 2016 09:54:27 BRST
-Display-
Resolution : 1920x1080 pixels
X11 Vendor : The X.Org Foundation
-Multimedia-
Audio Adapter : HDA-Intel - HDA Intel
-SCSI Disks-
ATA SAMSUNG HD502HJ
hp CDDVDW TS-L633N
-Version-
Kernel : Linux 3.19.0-43-generic (x86_64)
Compiled : #49~14.04.1-Ubuntu SMP Thu Dec 31 15:44:49 UTC 2015
Default C Compiler : GNU C Compiler version 4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04)
Distribution : Ubuntu 14.04.3 LTS
-Current Session-
Desktop Environment : LXDE (Lubuntu)
-BIOS-
Date : 06/24/2010
Vendor : Hewlett-Packard (www.hp.com)
Version : 786H8 v01.02
-Board-
Name : 1489
Vendor : Hewlett-Packard (www.hp.com)

[LStranger (andrej-rep)]

I believe it's fixed in more recent Ubuntu versions. I'm afraid fixed versions will be never backported to 14.04 though. :(

[henczati (henczati)]

As a workaround...

The Trusty repos of one or both of the following Lubuntu-dev PPA-s contain a/the fix for this issue for quite some time now:
 - ppa:lubuntu-dev/staging https://launchpad.net/~lubuntu-dev/+archive/ubuntu/staging
 - ppa:lubuntu-dev/lubuntu-daily https://launchpad.net/~lubuntu-dev/+archive/ubuntu/lubuntu-daily

Using the repo as a whole looked fairly stable to me. However, I did no deliberate testing, just used it for a time.

WARNING: I do not recommend using only the lxpanel package from the repos. There have been various changes which will make it misbehave in the old environment.

NOTE: For a live distro with no internet, you can e.g. pre-cache the packages and have them installed by a script after startup, or rebuild the livecd with fixed packages. For a smaller footprint, try finding a build that works for you just after the fix was committed into the relevant branch.

Hope this helps.

p.s.: +1 on propagating the fix into the trusty repos, especially into the lubuntu trusty livecd.

[Chris Guiver (guiverc)]

Thank you for reporting this bug to Ubuntu.

Ubuntu 14.04 (trusty) reached end-of-life on April 25, 2019.

See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test. If you then find the bug is still present in the newer Ubuntu version, please add a comment here telling us which new version it is in.

[Launchpad Janitor (janitor)]

[Expired for lxpanel (Ubuntu) because there has been no activity for 60 days.]