[Pkg-xfce-devel] Bug#491480: [xfce4-sensors-plugin] Crashes when opening "Properties"

[roman at rm.pp.ru (Roman Mamedov)]

Package: xfce4-sensors-plugin
Version: 0.10.99.5~svn-r4998-1
Severity: normal

After the last package upgrade, I can no longer configure the Sensor plugin.
If I right-click it and select "Properties", it seems to crash (silently disappears from the panel).
This is repeated when I re-add it to the panel and try to open "Properties" again.
Removing the plugin configuration file from ~/.config/xfce4/panel/ and restarting the panel
does not solve the problem.

Additionally, the following message is displayed on adding the plugin (although, as I understand,
the issue described here should never lead to a crash on opening the configuration window):

------------
"hddtemp" was not executed correctly, although it is executable. This is most probably due to
the disks requiring root privileges to read their temperatures, and "hddtemp" not being setuid root.

An easy but dirty solution is to run "chmod u+s /usr/sbin/hddtemp" as root user and restart
this plugin or its panel.

Calling "/usr/sbin/hddtemp -n -q /dev/sda" gave the following error:
/dev/sda: open: Permission denied

with a return value of 256.
------------

--- System information. ---
Architecture: amd64
Kernel:       Linux 2.6.25-1-amd64

Debian Release: lenny/sid
  500 testing         apt-proxy.i

--- Package information. ---
Depends                      (Version) | Installed
======================================-+-===============
libatk1.0-0                (>= 1.20.0) | 1.22.0-1
libc6                       (>= 2.7-1) | 2.7-10
libcairo2                   (>= 1.2.4) | 1.6.4-1+b1
libfontconfig1              (>= 2.4.0) | 2.5.0-2
libfreetype6                (>= 2.3.5) | 2.3.5-1+b1
libglib2.0-0               (>= 2.16.0) | 2.16.3-2
libgtk2.0-0                (>= 2.12.0) | 2.12.9-3
libpango1.0-0              (>= 1.20.3) | 1.20.3-2
libpixman-1-0                          | 0.10.0-2
libpng12-0               (>= 1.2.13-4) | 1.2.27-1
libsensors4             (>= 1:3.0.0-1) | 1:3.0.2-1
libx11-6                               | 2:1.1.4-2
libxcb-render-util0                    | 0.2+git36-1
libxcb-render0                         | 1.1-1.1
libxcb1                                | 1.1-1.1
libxfce4util4               (>= 4.4.2) | 4.4.2-2
libxfcegui4-4               (>= 4.4.2) | 4.4.2-4
libxrender1                            | 1:0.9.4-2
xfce4-panel                 (>= 4.4.2) | 4.4.2-6
zlib1g                    (>= 1:1.1.4) | 1:1.2.3.3.dfsg-12