Comment # 21 on bug 896632 from Dr. Werner Fink

(In reply to Martin Schr�der from comment #20)

Do you read the manual page? ... At least the paragraph I've pasted:

       xosview*coretempNPackage:   0
              The number of physical CPU for meter N on Linux. Currently only
              one physical CPU can be shown per meter.

I'll not hack this away.  The xosview simply reads the link `device' and if
this pints to coretemp.* it reads temp*_input below /sys/class/hwmon/hwmon*/
and i guess you have exactly one coretemp.0 hence one line.

If you think this should be changed then you are free to fork
https://github.com/hills/xosview