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List:       kde-bugs-dist
Subject:    [Bug 305791] New: Hardware Temperature: Graph does not scale when the units setting is changed in sy
From:       Akarsh Simha <akarsh.simha () kdemail ! net>
Date:       2012-08-25 22:22:14
Message-ID: bug-305791-17878 () http ! bugs ! kde ! org/
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https://bugs.kde.org/show_bug.cgi?id=305791

            Bug ID: 305791
          Severity: minor
               URL: http://i.imgur.com/OCZBA.png
           Version: 4.8.4
          Priority: NOR
          Assignee: plasma-bugs@kde.org
           Summary: Hardware Temperature: Graph does not scale when the
                    units setting is changed in system-settings/Locale
    Classification: Unclassified
                OS: Linux
          Reporter: akarsh.simha@kdemail.net
          Hardware: Debian testing
            Status: NEW
         Component: widget-systemmonitor
           Product: plasma

Let us say I change scale from Farenheit to Celsius by changing the system of
units to Metric. The graph showing the temperature history of the CPU does not
scale. Instead, one notices a "huge drop in temperature" when switching from
Farenheit to Celsius, although only the units have changed.

Reproducible: Always

Steps to Reproduce:
1. Open up System Settings / Locale.
2. Switch to the "Other" tab
3. Switch the system of units from Metric to Imperial / vice versa.
4. Observe the temperature graphs shown in the panel by "Hardware Temperature"
widget
Actual Results:  
The graph plots the numerical value of the temperature in either unit, rather
then plotting a unit-agnostic temperature value.

Expected Results:  
The graph should be agnostic to the unit system used. There should not be a
fake "drop" in temperature when switching from  °F to  °C, nor should there be a
fake "rise" in temperature when switching from  °C to  °F on the graph.

For instance, the graph might only plot the temperatures in Celsius, while the
numeric display when hovering on the graph could be dependent on the chosen
unit system.

A screenshot of the bug happening is available here:
http://i.imgur.com/OCZBA.png

The "spike" in temperature is not real -- it was just produced by changing
units from  °C to  °F and back.

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