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+Disper is an on-the-fly display switch utility.
+It is intended to be used just before giving a presentation
+with a laptop, when all one wants is that the beamer, which
+has just been connected, is able to show whatever you prepared.
+
+Disper gives you the option to either clone all detected displays,
+or extend the desktop to them. Resolutions are automatically
+detected. For cloning, the highest common resolution supported by
+all displays is chosen; for extending every display device gets
+its highest supported resolution. For special setups requiring
+more detailed control, one can still use the standard display
+configuration utilites.