Also, instead of reinstall your ubuntu, you tried the following?
sudo apt-get install upower
As a first feedback, during all day on my UNR 10.10 (Acer NAV50) it's working very well!
The only issue I noticed is that when I turn on the computer it doesn't identify that I'm using the battery. I need to start it using AC and after unplug it, so it identify that i'm using my battery.
This worked fine for me (--force-overwrite because on my 10.10 upower_ 0.9.5-4_ i386.deb is installed):
sudo dpkg --force-overwrite -i upower_ 0.9.1-1. 2_i386. deb
Also, instead of reinstall your ubuntu, you tried the following?
sudo apt-get install upower
As a first feedback, during all day on my UNR 10.10 (Acer NAV50) it's working very well!
The only issue I noticed is that when I turn on the computer it doesn't identify that I'm using the battery. I need to start it using AC and after unplug it, so it identify that i'm using my battery.