Lenovo ThinkPad Edge E425 - External Monitor Problems

Solution:Dothefollowing:
–PressF6tobringuptheimage.
–Ifyouareusingtheacpoweradapter,orusingthebatteryandthePowerManagerbatterygauge
showsthatthebatteryisnotdepleted,pressF8tomakethescreenbrighter.
–Ifyourcomputerisinsleepmode,pressFntoresumefromthesleepmode.
–Iftheproblempersists,followthesolutionforthefollowingproblem.
•Problem:Thescreenisunreadableordistorted.
Solution:Makesurethat:
–Thedisplaydevicedriverisinstalledcorrectly.
–Thescreenresolutionandcolorqualityarecorrectlyset.
–Themonitortypeiscorrect.
Tocheckthesesettings,dothefollowing:
1.Right-clickonthedesktop,andclickScreenresolution.
2.ClickAdvancedSettings.
3.ClicktheAdaptertab.
4.Makesurethatthecorrectdevicedrivernameisshownintheadapterinformationwindow.
Note:Thedevicedrivernamedependsonthevideochipthathasbeeninstalledonyourcomputer.
5.ClickthePropertiesbutton.Ifyouarepromptedforanadministratorpasswordorconrmation,type
thepasswordorprovideconrmation.Checkthe“Devicestatus”boxandmakesurethedeviceis
workingproperly.Ifnot,clicktheTroubleshootbutton.ClosethePropertieswindow.
6.ClicktheMonitortab.Checkwhetherthecolorqualityiscorrectlyset.Makesureotherinformation
isalsocorrect.
7.ClickthePropertiesbutton.Ifyouarepromptedforanadministratorpasswordorconrmation,type
thepasswordorprovideconrmation.Checkthe“Devicestatus”boxandmakesurethedeviceis
workingproperly.Ifnot,clicktheTroubleshootbutton.
•Problem:Incorrectcharactersappearonthescreen.
Solution:Didyouinstalltheoperatingsystemorapplicationprogramcorrectly?Iftheyareinstalledand
conguredcorrectly,havethecomputerserviced.
•Problem:Thescreenstaysonevenafteryouturnoffyourcomputer.
Solution:Pressandholdthepowerswitchfor4secondsormoretoturnoffyourcomputer;thenturn
itonagain.
•Problem:Missing,discolored,orbrightdotsappearonthescreeneverytimeyouturnonyourcomputer.
Solution:ThisisanintrinsiccharacteristicoftheTFTtechnology.Yourcomputerdisplaycontains
multiplethin-lmtransistors(TFTs).Asmallnumberofmissing,discolored,orbrightdotsonthescreen
mightexistallthetime.
Externalmonitorproblems
•Problem:Theexternalmonitorisblank.
Solution:Tobringuptheimage,pressF6andselectthedesiredmonitor.Iftheproblempersists,do
thefollowing:
1.Connecttheexternalmonitortoanothercomputertomakesureitworks.
2.Reconnecttheexternalmonitortoyourcomputer.
Chapter9.Troubleshootingcomputerproblems123