[Bug 155239] New: battery applet shows empty bay as 0% battery

[Laurens Vanhove]

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http://bugs.kde.org/show_bug.cgi?id=155239         
           Summary: battery applet shows empty bay as 0% battery
           Product: plasma
           Version: unspecified
          Platform: Compiled Sources
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: panel-devel kde org
        ReportedBy: laurens nature-helps com


Version:            (using KDE Devel)
Installed from:    Compiled sources
Compiler:          gcc 4.1.2 
OS:                Linux

I have a Dell Latitude D820, with two battery bays. Only one battery is present.
Solid detects everything :

laurens latitude ~ $ solidshell hardware list details | grep -i bat
udi = '/org/freedesktop/Hal/devices/acpi_BAT0'
  product = 'Battery Bay'  (string)
  Battery.plugged = true  (bool)
  Battery.type = 'PdaBattery|UpsBattery|PrimaryBattery'  (0x3)  (enum)
  Battery.chargePercent = 100  (0x64)  (int)
  Battery.rechargeable = true  (bool)
  Battery.chargeState = 'NoCharge'  (0x0)  (enum)
udi = '/org/freedesktop/Hal/devices/acpi_BAT1'
  product = 'Battery Bay'  (string)
  Battery.plugged = false  (bool)
  Battery.type = 'PdaBattery|UpsBattery|PrimaryBattery'  (0x3)  (enum)
  Battery.chargePercent = 0  (0x0)  (int)
  Battery.rechargeable = false  (bool)
  Battery.chargeState = 'NoCharge'  (0x0)  (enum)

But the plasma battery applet shows two batteries, the real one, and a second one that is always 0% (but in fact this is just an empty bay, or an unplugged battery as solid calls it). I believe it would be better to hide empty bays.

I've taken a look at the sources, and it seems that the powermanager datasource can handle unplugged batteries, but that the battery applet isn't using this information.

The patch at http://bugs.kde.org/show_bug.cgi?id=153398 may have something to do with this.