Tried both 1.8 and 1.7 drivers and display is blank

[jerrythea]

Seeing this in kernel.log:

Jul 10 18:54:21 macbook4 kernel[0]: USBF: 77.433 [0xffffff8020351400] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 3 of Hub at 0xfd120000)
Jul 10 18:54:21 macbook4 kernel[0]: USBF: 77.434 [0xffffff8020351400] The IOUSBFamily was not able to enumerate a device.
Jul 10 18:55:17 macbook4 kernel[0]: USBF: 133.976 [0xffffff802030a800] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 3 of Hub at 0xfa100000)
Jul 10 18:55:17 macbook4 kernel[0]: USBF: 133.976 [0xffffff802030a800] The IOUSBFamily was not able to enumerate a device.

Seeing this in system.log:
Jul 10 18:14:05 macbook4 com.apple.launchd[1] (com.displaylink.usbnivolistener[20316]): Exited with code: 1
Jul 10 18:14:05 macbook4 com.apple.launchd[1] (com.displaylink.usbnivolistener): Throttling respawn: Will start in 5 seconds
Jul 10 18:14:10 macbook4 com.apple.launchd[1] (com.displaylink.usbnivolistener[20355]): Exited with code: 1
Jul 10 18:14:10 macbook4 com.apple.launchd[1] (com.displaylink.usbnivolistener): Throttling respawn: Will start in 5 seconds
Jul 10 18:15:00 macbook4 USBNivoListener[118]: (1138)main Main: Creating DisplayLink folder
Jul 10 18:15:01 macbook4 DisplayLinkUserAgent[280]: SCNetworkReachabilityCreateWithAddress[Pair] called with invalid address family 1
Jul 10 18:15:30 macbook4 DisplayLinkUserAgent[547]: SCNetworkReachabilityCreateWithAddress[Pair] called with invalid address family 1
Jul 10 18:30:34 macbook4 DisplayLinkUserAgent[547]: (0163e8a0.374)-[DLDistributedNotificationCenter stream:handleEvent:] Server did die - reconnecting
Jul 10 18:30:38 macbook4 com.apple.launchd.peruser.500[439] (com.displaylink.useragent[547]): Exited: Terminated: 15
Jul 10 18:36:30 macbook4 com.apple.launchd[1] (com.displaylink.usbnivolistener[860]): Exited with code: 1
Jul 10 18:36:30 macbook4 com.apple.launchd[1] (com.displaylink.usbnivolistener): Throttling respawn: Will start in 5 seconds
Jul 10 18:36:35 macbook4 com.apple.launchd[1] (com.displaylink.usbnivolistener[893]): Exited with code: 1
Jul 10 18:36:35 macbook4 com.apple.launchd[1] (com.displaylink.usbnivolistener): Throttling respawn: Will start in 5 seconds
Jul 10 18:37:57 macbook4 USBNivoListener[137]: (1138)main Main: Creating DisplayLink folder
Jul 10 18:37:57 macbook4 DisplayLinkUserAgent[422]: SCNetworkReachabilityCreateWithAddress[Pair] called with invalid address family 1
Jul 10 18:41:33 macbook4 DisplayLinkUserAgent[422]: (02260c60.374)-[DLDistributedNotificationCenter stream:handleEvent:] Server did die - reconnecting
Jul 10 18:41:37 macbook4 com.apple.launchd.peruser.500[334] (com.displaylink.useragent[422]): Exited: Terminated: 15
Jul 10 18:44:22 macbook4 com.apple.launchd[1] (com.displaylink.usbnivolistener[758]): Exited with code: 1
Jul 10 18:44:22 macbook4 com.apple.launchd[1] (com.displaylink.usbnivolistener): Throttling respawn: Will start in 5 seconds
Jul 10 18:44:27 macbook4 com.apple.launchd[1] (com.displaylink.usbnivolistener[774]): Exited with code: 1
Jul 10 18:44:27 macbook4 com.apple.launchd[1] (com.displaylink.usbnivolistener): Throttling respawn: Will start in 5 seconds
Jul 10 18:45:49 macbook4 USBNivoListener[122]: (1138)main Main: Creating DisplayLink folder
Jul 10 18:45:49 macbook4 DisplayLinkUserAgent[425]: SCNetworkReachabilityCreateWithAddress[Pair] called with invalid address family 1
Jul 10 18:50:13 macbook4 DisplayLinkUserAgent[425]: (03919c60.374)-[DLDistributedNotificationCenter stream:handleEvent:] Server did die - reconnecting
Jul 10 18:50:18 macbook4 com.apple.launchd.peruser.500[334] (com.displaylink.useragent[425]): Exited: Terminated: 15
Jul 10 18:52:06 macbook4 com.apple.launchd[1] (com.displaylink.usbnivolistener[613]): Exited with code: 1
Jul 10 18:52:06 macbook4 com.apple.launchd[1] (com.displaylink.usbnivolistener): Throttling respawn: Will start in 5 seconds
Jul 10 18:52:11 macbook4 com.apple.launchd[1] (com.displaylink.usbnivolistener[661]): Exited with code: 1
Jul 10 18:52:11 macbook4 com.apple.launchd[1] (com.displaylink.usbnivolistener): Throttling respawn: Will start in 5 seconds
Jul 10 18:53:30 macbook4 USBNivoListener[115]: (1138)main Main: Creating DisplayLink folder
Jul 10 18:53:31 macbook4 DisplayLinkUserAgent[422]: SCNetworkReachabilityCreateWithAddress[Pair] called with invalid address family 1
Jul 10 19:07:48 macbook4 DisplayLink Information[841]: Could not connect the action doNothing: to target of class NSApplication