MBP 8,2 HIS II DL-195 adapter not working
 

This adapter originally worked fine on OSX 10.7.5, then after updating to 10.8.0 it stopped working in July 2012.

I have since reformatted with a fresh 10.8.2 and tried the new 2.0 alpha driver and it looks like the exact same errors.

2/25/13 2:22:43.000 PM kernel[0]: USBF: 6660. 60 [0xffffff8027a87800] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 2 of Hub at 0xfd100000)
2/25/13 2:22:43.000 PM kernel[0]: USBF: 6660.802 [0xffffff8027a87800] The IOUSBFamily has successfully enumerated the device.
2/25/13 2:22:43.000 PM kernel[0]: considerRebuildOfPrelinkedKernel prebuild rebuild has expired
2/25/13 2:22:49.000 PM kernel[0]: USBF: 6666.699 AppleUSBEHCI[0xffffff80277d2000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfd, timing out! (Addr: 4, EP: 0)

FYI This adapter works fine with Windows.

As seen from System Info
DL-195 Adapter:

Product ID: 0x028f
Vendor ID: 0x17e9 (DisplayLink (UK) Ltd.)
Version: 1.24
Serial Number: 109480
Speed: Up to 480 Mb/sec
Manufacturer: DisplayLink
Location ID: 0xfd120000 / 4
Current Available (mA): 500
Current Required (mA): 500

It is now working!

The issue I believe is something to do with Thunderbolt and USB.

According to this thread which were seeing the exact same types of messages in the log as I was seeing:

https://discussions.apple.com/thread...art=0&tstart=0

It turns out that removing the Thunderbolt display and then plugging the HIS II into the USB port did the trick.

I then plugged in the Thunderbolt Displayport and it also came on.

So I am writing this viewing all 3 displays!

FYI I always had the Thunderbolt Displayport plugged in never occurred to me to unplug it.

So this issue has come back and what originally worked above no longer works.

Third monitor no longer comes on and I keep seeing the same messages in log.

The only thing I can think of at this point is using a powered USB hub.

Ideas?

Maybe I should wait and get this!

http://www.belkin.com/us/thunderbolt

USB Hub did not help :(

upgraded to 10.8.3 still seeing the same messages :(

Are you using Beta 1 build we've recently released?
Please use it and capture fresh logs if the problem remains.

Thanks,
Michal