3.SelecttheHardwaretab.IntheDevicePropertiespane,makesurethatyouseethismessage:
DeviceStatus:Thisdeviceisworkingproperly.
Ifkeysonthekeyboardstilldonotwork,havethecomputerserviced.
•Problem:Allorsomekeysontheexternalnumerickeypaddonotwork.
Solution:Makesurethattheexternalnumerickeypadiscorrectlyconnectedtothecomputer.
Problemswiththedisplayandmultimediadevices
Thistopicincludesthemostcommonproblemswithdisplaysandmultimediadevices,includingthe
computerdisplay,theexternalmonitor,audiodevices,andtheopticaldrive.
Computerscreenproblems
•Problem:Thescreenisblank.
Solution:Dothefollowing:
–Pressthedisplay-modeswitchingkeytobringuptheimage.
–Ifyouareusingtheacpoweradapter,orusingthebatteriesandthebattery-statusiconshowsthatthe
batteriesarenotdepleted,pressthebrightness-upkey
tomakethescreenbrighter.
–Ifyourcomputerisinsleepmode,presspowerbuttontoresumefromthesleepmode.
–Iftheproblempersists,followthesolutionforthefollowingproblem.
•Problem:Thescreenisunreadableordistorted.
Solution:Makesurethat:
–Thedisplaydevicedriverisinstalledcorrectly.
–Thescreenresolutionandcolorqualityarecorrectlyset.
–Themonitortypeiscorrect.
Tocheckthesesettings,dothefollowing:
1.Connecttheexternalmonitortoyourcomputer,andthenconnectthemonitortoanelectricaloutlet.
2.Turnontheexternalmonitor.
3.Right-clickonthedesktop,anddothefollowing:
–ForWindows7:ClickScreenresolution.
–ForWindows10:ClickDisplaysettings,showthedisplayedwindowinfullscreen,andthen
clickAdvanceddisplaysettings.
Note:Ifyourcomputercannotdetecttheexternalmonitor,clicktheDetectbutton.
4.SelecttheexternalmonitorandsetResolution.
5.Dothefollowing:
–ForWindows7:ClickAdvancedsettings.
–ForWindows10:ClickDisplayadapterproperties.
6.ClicktheMonitortab.Checkthemonitorinformationtomakesurethatthemonitortypeiscorrect.
Ifthemonitortypeiscorrect,clickOKtoclosethewindow;otherwiseproceedwiththefollowingsteps.
1.Ifmorethantwomonitortypesaredisplayed,selectGenericPnPMonitororGenericNon-PnP
Monitor.
2.ClickProperties.Ifyouarepromptedforanadministratorpasswordorconfirmation,typethe
passwordorprovideconfirmation.
3.ClicktheDrivertab.
84ThinkPad13UserGuide