Lenovo ThinkPad T510 does not handle disconnection of 2nd display properly on RHEL 6.0

Solution Verified - Updated -

Issue

Lenovo ThinkPad T510 does not handle disconnection of 2nd display properly.

Steps to reproduce
1 - Install Red Hat Enterprise Linux 6  on a T510 laptop (this also applies to T410 laptops, and not yet confirmed, also possibly X201 laptops)
2 - Log in as a user
3 - Attach a secondary monitor.  Use System -> Preferences -> Display as necessary to get your desired preferences
4 - Detach the monitor
5 - Attempt to suspend the system

The system goes into a locked state.  The display is shifted to the left, outlines of several windows is visible.  Nothing is clickable.  No key commands seem to respond, except for switching to a VT (CTRL ALT F2)

Environment

  • Red Hat Enterprise Linux (RHEL) 6.0

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