ThinkPad Yoga14 - External Monitor Problems

deviceisworkingcorrectly.Ifthedeviceisnotworkingcorrectly,clicktheTroubleshootbuttonand
followtheinstructionsonthescreen.
Note:Thedevicedrivernamedependsonthevideochipthathasbeeninstalledonyourcomputer.
5.ClicktheColourManagementtab,andthenclicktheColourManagementbutton.Inthedisplayed
ColourManagementwindow,clicktheAdvancedtabandensurethatthesettingsintheWindows
ColourSystemDefaultsareaaresetasdesired.Ifyouarepromptedforanadministratorpassword
orconfirmation,typethepasswordorprovideconfirmation.
•Problem:Incorrectcharactersaredisplayedonthescreen.
Solution:Didyouinstalltheoperatingsystemorapplicationprogramcorrectly?Iftheyareinstalledand
configuredcorrectly,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.Connecttheexternalmonitortoanothercomputertoensurethatitworks.
2.Reconnecttheexternalmonitortoyourcomputer.
3.Refertothemanualshippedwiththeexternalmonitortochecktheresolutionsandrefreshratesthat
aresupported.
–Iftheexternalmonitorsupportsthesameresolutionasthecomputerdisplayorahigherresolution,
viewoutputontheexternalmonitororonboththeexternalmonitorandthecomputerdisplay.
–Iftheexternalmonitorsupportsalowerresolutionthanthecomputerdisplay,viewoutputonthe
externalmonitoronly.(Ifyouviewoutputonboththecomputerdisplayandtheexternalmonitor,
theexternalmonitorscreenwillbeblankordistorted.)
•Problem:Youcannotsetahigherresolutionthanthepresentoneonyourexternalmonitor.
Solution:Makesurethatthemonitortypeandotherinformationiscorrect.Ifnecessary,updatethe
monitordriver.See“Usinganexternaldisplay”onpage44
.
•Problem:Thescreenisunreadableordistorted.
Solution:Ensurethat:
–Themonitorinformationiscorrectandtheappropriatemonitortypeisselected.Refertothesolution
totheaboveproblem.
–Ensurethatanappropriaterefreshrateisselectedbydoingthefollowing:
1.Connecttheexternalmonitortothemonitorconnector,andthenconnectthemonitortoan
electricaloutlet.
2.Turnontheexternalmonitorandthecomputer.
Chapter7.Troubleshootingcomputerproblems91