Sony VPCZ2190X Laptop external display output is not working with RHEL6

Solution In Progress - Updated -

Issue

  • RHEL6.4 is unable to mirror the display of a Sony VPCZ2190X laptop onto either of the external video outputs (the built-in port or the one on the PMD).
  • Unable to mirror the display of a Sony VPCZ2190X Laptop running RHEL6.
  • External display ports are working fine with Fedora18 and users are getting display on external monitor connected to display port.

Environment

  • Red Hat Enterprise Linux 6.4
  • xorg-x11-drv-intel-2.20.2-2.el6.x86_64

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