Lenovo ThinkPad Edge E420 - Using Dual Displays

11.ClickUpdateDriver.TheHardwareUpdateWizardappears.
12.ClickNo,notthistime,andthenclickNext.
13.SelectInstallfromalistorspeciclocation(Advanced),andthenclickNext.
14.SelectDon'tsearch.Iwillchoosethedrivertoinstall,andthenclickNext.
15.CleartheShowcompatiblehardwarecheckbox.
16.SelectManufacturerandModelforyourmonitor.Ifyoucannotndyourmonitorinthelist,stopthe
installationofthisdriverandusethedrivershippedwithyourmonitor.
17.Afterupdatingthedriver,clickOKtoclosethePropertieswindow.
18.SetColorsandScreenareaintheDisplayPropertieswindow.
19.ClickOK.
Considerationsforattachinganexternalmonitor
•Wheninstallinganoperatingsystem,youmustinstallthedisplaydriverforyourmonitorthatissupplied
withthecomputer,andtheMonitorINFlethatissuppliedwiththeexternalmonitor.
•Ifyousetaresolutionhigherthantheresolutionyouareusingonthepanel,anduseapanelthatdoesnot
supportthatresolution,takeadvantageofthevirtualscreenfunction,whichenablesyoutodisplayonlya
partofthehigh-resolutionscreenimageyourcomputerproduces.Youcanseeotherpartsoftheimage
bymovingthescreenwiththeTrackPointorotherpointingdevice.
Note:ThevirtualscreenfunctionisnotsupportedonWindows7.
•Iftheexternalmonitoryouareusingisoutdated,theresolutionandtherefreshratemaybelimited.
Usingdualdisplays
UsingtheExtenddesktopfunction
YourcomputersupportsafunctionnamedtheExtenddesktop.WiththeExtenddesktopfunction,you
candisplayoutputonboththecomputerdisplayandanexternalmonitor.Youcanalsodisplaydifferent
desktopimagesoneachmonitor.
YoucanusetheExtenddesktopfunctionwithoutchanginganysettings.Ifthefunctiondoesnotwork,refer
to“EnablingtheExtenddesktopfunction”onpage50
toenableit.
ConsiderationsforusingtheExtenddesktopfunction
•IfyouwanttoshowDOSfull-screenwhileintheExtenddesktopmode,onlytheprimarydisplayshows
DOS;theotherdisplayisblackedout.
IfyourcomputerhastheIntel
®
displayadapter,youcandesignatetheotherdisplayastheprimary
displaybydoingthefollowing:
1.PressCtrl+Alt+Fn+F12.TheIntelCUIwindowopens.
2.SelectExtendedDesktop.
3.Changethesettingtodesignatetheprimarydisplay.
•WhenanapplicationusingtheDirectDrawortheDirect3Displayedinfull-screenmode,itisshown
onlyontheprimarydisplay.
•YoucannotusethedisplayswitchingfunctionwhenyouareintheExtenddesktopmode.
EnablingtheExtenddesktopfunction
ToenabletheExtenddesktopfunction,doasfollows:
ForWindows7:
50UserGuide