I have a Plugable 7-port powered USB 3.0 hub. I use it to connect my external hard drives (I have three) to my Macbook Pro (that has only 2 USB 3.0 ports).
Sometimes, when I plug the hub into my Mac, it'll just hang up, and the keyboard and trackpad become complete unresponsive. However, everything else seems to be working normally (music is still playing, downloads are being done, notifications pop up, general screen activity is normal).
It's happened several times now and is really annoying as I fear it could soon corrupt the information on my hard drives (especially since I run VMs off the externals).
Is there any way I can diagnose the problem/check system logs or anything?