Thanks for the reports. Could you please check using the Activity Monitor tool if is the DisplayLinkManager the process maxing out the cpu?
In case you can easily reproduce the issue, could you please use the debug tool here http://www.displaylink.com/support/ticket.php?id=269 and do the following steps:
- switch the log verbosity to DEBUG (in the Advanced menu->log verbosity)
- unplug and replug the adapter
- reproduce the issue
- collect the debug info and post the output file
- switch back the log verbosity to INFO
Thanks

CPU spinning logs
 

attached are the requested logs

Thanks for the logs. Do you see the issue only when using the "virtual display" feature? When you use the virtual display feature, you see the problem when a login screen is shown int the virtual display (or in the real display) or the cpu is maxed out even if both the local and the remote user are logged in? Thanks

Yes, I only have the issue once I've used virtual display feature, though it will often continue to spin the cpu even after I revert back to the hardware display. In my case I'm the only person using the machine so when I'm using the virtual display the real display is idle on the login screen. When the issue occurs it continues after I've logged in. If I completely avoid using the virtual display feature I can VNC in fine and not have the CPU spinning issue.

It hasn't happened again for me since installing 1.7b4 pretty much as soon as it came out, so I'd say that for my setup, it's fixed.
Thanks

still spinning on 1.7b4/10.7.2
 

subject pretty much says it all, I'm running 10.7.2 and 1.7b4 and still have the spin occurring when I vnc in to the virtual display

I only see DisplayLink's spinning core, when I connect through a shared screen and use the "virtual display" function, which is the new big screen lion share.

Ok, the cause of the issue has been found. The problem should happen only when using the screen sharing feature. We will try to fix it.