Public bug reported:
Setup:
Ubuntu Gutsy with basic power management settings (shutdown when critical)
Dell Inspiron 8600
2x laptop batteries
1 UPS connected via USB (CPS CP 1300D)
AC Power unplugged
The laptop was unplugged from AC power by accident and was correctly
placed on Battery Mode. After both batteries discharged completely, the
system shutdown without warning. The UPS was still listed in the
notification area icon as 100% with 1 hour 31 minutes charge time, even
though the computer was on battery power and had no way of drawing power
from the UPS.
I believe that it miscalculated the remaining time available on battery
power because of the UPS being connected. Because of this, it never
properly warned me to shutdown, or to plug it back in.
** Affects: ubuntu
Importance: Undecided
Status: New
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USB connected UPS reported as internal power
https://bugs.launchpad.net/bugs/174151
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