+1000 My ubuntu laptop has now became a stationary computer permanently stuck to the docking station and i never put it to sleep because I'm scared every time

+1000 My ubuntu laptop has now became a stationary computer permanently stuck to the docking station and i never put it to sleep because I'm scared every time i unplug or plug in an external device. Anything from the most simple USB keyboard to ethernet, to VGA monitor, HDMI/DP/DVI monitors, USB3 docking station, close laptop lid, wake from sleep... EVERYTHING has a big chance that the hot plug will fail and you either have to reboot for the device to be detected or in worst case the OS just freezes. This is a must fix for ubuntu to ever be viable as a desktop OS.