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Description of problem:
The Xinerama extension is disabled at build time. This was originally (in 2009) due to a build error, but this is no longer the case.

People who want to use multi-screen sessions will find that e.g. maximised windows are maximised over all screens instead of just one.

Version-Release number of selected component (if applicable):
1.2.80-0.31.20130314svn5065

Additional info:
https://github.com/TigerVNC/tigervnc/issues/147

Fixed in tigervnc-1.3.1-1.el7.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHSA-2015-2233.html