Created attachment 823105 [details]
Image showing incorrect calculation for time remaining

Description of problem:

I have two batteries on my ThinkPad 420s.  One is a 6-cell and the other is a 3-cell.  The laptop firmware discharges the 3-cell one completely before switching to the 6-cell one.  When the 3-cell one nears full discharge, gnome thinks the laptop is going to run out of power.

As shown in the attachment, the % remaining calculation is correct, and takes both batteries into account.  But the time remaining estimate is incorrect, and only based on the currently-discharging battery.

So gnome keeps suspending my laptop till the firmware switches to the 6-cell battery.

Once that happens, the time remaining is updated to reflect the 6-cell battery's discharge rate.

This is a regression from F19.


Version-Release number of selected component (if applicable):

$ rpm -q gnome-shell
gnome-shell-3.10.1-2.fc20.x86_64