forked from openlp/openlp
changes to dual monitor
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@ -180,3 +180,46 @@ on :guilabel:`Save to X Configuration File`.
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Click :guilabel:`Save` and you should be set. You may want to restart X or
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your machine just to make sure all the settings carry over the next time you log
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in.
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Linux Systems With Intel Video
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Generally systems with Intel video cards work very well. They are well supported
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by open source drivers. There are, however, a couple of issues that may require
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some work arounds.
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**Resolution Issue**
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There is a limitation with certain cards that limits the total resolution to
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2048x2048, so both monitors can not have a total resolution totaling more than
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that. To work around this it may be necessary to position your monitor as a top
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or bottom monitor as opposed to the typical side by side setup. This can easily
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be accomplished through your desktop's control of monitors. Please see the
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sections on dual monitors with KDE and GNOME above.
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**Primary Monitor Issues**
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With certain cards your system may get confused on what is the primary display.
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For example many users will be using a laptop. You will want your laptop screen
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to be the primary screen, and your projector to be the secondary monitor.
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Certain Intel cards reverse this. To work around this you will need to know the
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name of your monitor. If you are a KDE user this info is given to you in the
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display settings. If you are not using KDE enter the following in a terminal
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without your projector connected to your computer::
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user@linux:~ $ xrandr -q
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This will give you a long string of output. Screen names will be something along
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the lines of LVDM, VGA-0 or some convention similar to that. Without your
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projector connected to your computer only one monitor show as being connected.
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That will be the monitor you will need as the primary. Now connect your
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projector and enter::
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user@linux:~ $ xrandr --output LVDM --primary
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**Note** it has been reported that when this issue is occurring you will not
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want to connect your projector until your desktop is running.
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