Sorry to hear about the audio driver issues. You mention installing DisplayLink software several times - if you haven’t yet run their “cleaner” tool, that’s definately a good next step. To do so:
Thanks for contacting Plugable! We’ll be happy to help.
-Disconnect the dock from the computer, and unplug the power to the dock
-Uninstall DisplayLink Core software from Control Panel->Programs. Don’t worry if this fails or if this entry is missing, just move onto the next step
-Download and run the DisplayLink cleaner tool, found here:
-Once the Cleaner has been run, reboot (even if not prompted to)
-Now download and run the latest DisplayLink software, found here:
-During installation, reattach the docking station (power, then USB) when prompted to connect
If there are still issues with the audio drivers after the above steps, we’ll want to take a look at some system logs. Please email firstname.lastname@example.org (subject: Ticket 134436) and we can provide instructions for collecting log files.