Lenovo ThinkPad E450 - External Monitor Problems

Solution:Didyouinstalltheoperatingsystemorprogramcorrectly?Iftheyareinstalledandconfigured
correctly,havethecomputerserviced.
•Problem:Thescreenstaysonevenafteryouturnoffyourcomputer.
Solution:Pressandholdthepowerbuttonforfoursecondsormoretoturnoffyourcomputer;then
turnitonagain.
•Problem:Missing,discolored,orbrightdotsappearonthescreeneverytimeyouturnonyourcomputer.
Solution:ThisisanintrinsiccharacteristicoftheTFTtechnology.Yourcomputerdisplaycontains
multiplethin-filmtransistors(TFTs).Asmallnumberofmissing,discolored,orbrightdotsonthescreen
mightexistallthetime.
Externalmonitorproblems
•Problem:Theexternalmonitorisblank.
Solution:Tobringuptheimage,pressthedisplaymode-switchingkey:andselectthedesired
monitor.Iftheproblempersists,dothefollowing:
1.Connecttheexternalmonitortoanothercomputertomakesurethatitworks.
2.Reconnecttheexternalmonitortoyourcomputer.
3.Refertothemanualshippedwiththeexternalmonitortochecktheresolutionsandrefreshratesthat
aresupported.
–Iftheexternalmonitorsupportsthesameresolutionasthecomputerdisplayorahigherresolution,
viewoutputontheexternalmonitororonboththeexternalmonitorandthecomputerdisplay.
–Iftheexternalmonitorsupportsalowerresolutionthanthecomputerdisplay,viewoutputonthe
externalmonitoronly.(Ifyouviewoutputonboththecomputerdisplayandtheexternalmonitor,
theexternalmonitorscreenwillbeblankordistorted.)
•Problem:Youcannotsetahigherresolutionthanthepresentoneonyourexternalmonitor.
Solution:Makesurethatthemonitorinformationiscorrect.Dothefollowing:
1.Connecttheexternaldisplaytothemonitorconnector,andthenconnectthemonitortoanelectrical
outlet.
2.Turnontheexternaldisplayandthecomputer.
3.Right-clickonthedesktop,anddothefollowing:
–ForWindows7andWindows8.1:ClickScreenresolution.
–ForWindows10:ClickDisplaysettings,showthedisplayedwindowinfullscreen,andthen
clickAdvanceddisplaysettings.
Note:Ifyourcomputercannotdetecttheexternalmonitor,clicktheDetectbutton.
4.Clicktheiconforthedesiredmonitor(theMonitor-2iconisfortheexternalmonitor).
5.Dothefollowing:
–ForWindows7andWindows8.1:ClickAdvancedsettings.
–ForWindows10:ClickDisplayadapterproperties.
6.ClicktheMonitortab.Checkthemonitorinformationwindowtomakesurethatthemonitortypeis
correct.Ifitis,clickOKtoclosethewindow;otherwisedothefollowing.
7.Ifmorethanonemonitortypeisdisplayed,selectGenericPnPMonitororGenericNon-PnP
Monitor.
Note:Iftheproblemstillisnotsolved,continuethefollowingstepstoupdatethemonitordriver.
Chapter8.Troubleshootingcomputerproblems89