Comment 31 for bug 1546641

So whether it be broken/missing libs or bad USB device enumeration causing upowerd to be either not available or slow to start, it would seem unity-settings-daemon could at least be improved to be robust enough not to segfault if upowerd is not present.

In the meantime, I was able to solve the USB device problem to work around upower.service slow start by adding the kernel commandline parameters 'usbcore.use_both_schemes=y usbcore.old_scheme_first=y'.