If upower is calling libraries, then the problem could well be in the library itself. Could also be an error in how upower handles the information pulled back from said library. Feel free to add another task if you think it's the library. :)
If upower is calling libraries, then the problem could well be in the library itself. Could also be an error in how upower handles the information pulled back from said library. Feel free to add another task if you think it's the library. :)