Failing to wake up from sleep? Try disabling your screen saver.

[aiyagari]

Possible solution -- seemed to have worked today.

Use sleepwatcher. Add the -S and -W options to /Library/LaunchDaemons/de.bernhard-baehr.sleepwatcher.plist to run display sleep and wakeup scripts.

The display sleep script should be:

launchctl remove com.displaylink.usbnivolistener

The display wakeup script should be:

launchctl load /Library/LaunchDaemons/com.displaylink.usbnivolistener.plist

This will cause the driver to be disabled during display sleep and re-enabled during display wakeup. It is very fast, unlike the uninstall/reinstall driver trick. The driver stays installed, just disabled.