Re: Ubuntu wont suspend from usb hdd
The reason it may have rebooted slowly is because if it powered off without shutting down properly it considers the partitions unclean and runs fsck to check them when it boots. Although, if it continues to boot slowly on subsequent boots, not sure what the issue is.
I have never had any luck doing suspend or hibernate when booted from USB. So it is probably best to set power settings to shutdown when lid is closed, power button pressed, or low battery.
i5 650 3.2 GHz, 8 GB, nvidia GTX 550 Ti 32" 1080p | i7-4700, 8 GB, Intel HD 4600/nvidia GTX 765M 15.6" 1080p | etc.