X server hanging frequently on RHEL 6

Solution Unverified - Updated -

Issue

  • X server is hanging frequently, sometimes multiple times per day.
  • When this occurs, everything freezes, including the mouse pointer.
  • The system still responds to ping and SSH; but the Xorg environment can only be used again with SysRq-K

Environment

  • Red Hat Enterprise Linux 6
  • intel Xorg driver

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