I purchased a Plugable UD-160-A USB 2.0 Universal Docking Station a couple of years ago. I use this with my Lenovo W520 laptop to avoid having to connect a keyboard, mouse, ethernet and external set of speakers.
This configuration worked fine when I ran Red Hat Enterprise Linux 6.5 on my Lenovo W520. I since switched to Fedora 20 on both my W520 and my W510 laptops. I heard that Fedora 20 worked better with Plugable but that was not my case.
My keyboard worked when I booted my laptop (I must use LUKs encrpytion so I must enter a password at each boot) but when I got my login screen (lightdm), the keyboard and mouse were not working and I tried searching and gave up on a solution until yesterday. The lspci command showed my keyboard, mouse, ethernet adapter and audio sound device built-in into the Plugable device.
I found this post in on the Plugable website that contained a simple udev rule that needed to be commented out and the computer rebooted. I applied the change and my keyboard, mouse and ethernet work. I am assuming the speaker also works.
The solution was to to edit /lib/udev/rules.d/71-seat.rules as root user and comment the following line (second line actually):
# 'Plugable' USB hub, sound, network, graphics adapter
SUBSYSTEM=="usb", ATTR{idVendor}=="2230", ATTR{idProduct}=="000[13]", ENV{ID_AUTOSEAT}="1"
I am so happy that I don't have to plug so 6 cables into my Lenovo W520 laptop anymore when I am at home.
