Lenovo ThinkPad Edge E220s - External Monitor Problems

1.Right-clickonthedesktop,andclickPropertiestoopentheDisplayPropertieswindow.
2.ClicktheSettingstab.
3.Checkwhetherthescreenresolutionandcolorqualityarecorrectlyset.
4.ClickAdvanced.
5.ClicktheAdaptertab.
6.Makesurethatthecorrectdevicedrivernameisshownintheadapterinformationwindow.
Note:Thedevicedrivernamedependsonthevideochipthathasbeeninstalledonyourcomputer.
7.ClickthePropertiesbutton.Checkthe“Devicestatus”boxandmakesurethedeviceisworking
properly.Ifnot,clicktheTroubleshootbutton.
8.ClicktheMonitortab.
9.Makesuretheinformationiscorrect.
10.ClickthePropertiesbutton.Checkthe“Devicestatus”boxandmakesurethedeviceisworking
properly.Ifnot,clicktheTroubleshootbutton.
•Problem:Incorrectcharactersappearonthescreen.
Solution:Didyouinstalltheoperatingsystemorapplicationprogramcorrectly?Iftheyareinstalledand
conguredcorrectly,havethecomputerserviced.
•Problem:Thescreenstaysonevenafteryouturnoffyourcomputer.
Solution:Pressandholdthepowerswitchfor4secondsorovertoturnoffyourcomputer;thenturn
itonagain.
•Problem:Missing,discolored,orbrightdotsappearonthescreeneverytimeyouturnonyourcomputer.
Solution:ThisisanintrinsiccharacteristicoftheTFTtechnology.Yourcomputer'sdisplaycontains
multiplethin-lmtransistors(TFTs).Asmallnumberofmissing,discolored,orbrightdotsonthescreen
mightexistallthetime.
Externalmonitorproblems
•Problem:Theexternalmonitorisblank.
Solution:Tobringuptheimage,pressF6andselectthedesiredmonitor.Iftheproblempersists,do
thefollowing:
1.Connecttheexternalmonitortoanothercomputertomakesureitworks.
2.Reconnecttheexternalmonitortoyourcomputer.
3.Refertothemanualshippedwiththeexternalmonitortochecktheresolutionsandrefreshratesthat
aresupported.
–Iftheexternalmonitorsupportsthesameresolutionasthecomputerdisplayorahigherresolution,
viewoutputontheexternalmonitororonboththeexternalmonitorandthecomputerdisplay.
–Iftheexternalmonitorsupportsalowerresolutionthanthecomputerdisplay,viewoutputonthe
externalmonitoronly.(Ifyouviewoutputontheboththecomputerdisplayandtheexternal
monitor,theexternalmonitorscreenwillbeblankordistorted.)
•Problem:Youcannotsetahigherresolutionthanthepresentoneonyourexternalmonitor.
Solution:
–Makesurethatmonitorinformationiscorrect.Dothefollowing:
ForWindows7:
1.Right-clickonthedesktop,andclickScreenresolution.
Chapter10.Troubleshootingcomputerproblems137