Lenovo M4350 Betriebsanweisung PDF herunterladen (Seite 47)

OntheWindows8operatingsystem,openControlPanelandclickHardwareandSound➙Adjust

screenresolution➙AdvancedSettings.ThenclicktheMonitortabandselectanewrefreshrate.

•Seeyouroperatingsystemdocumentationorhelpforfurtherinformationonmonitorsettings.

Theimageisdiscolored

Symptom:Theimageisdiscolored.

Action:Themonitormightbeaffectedbyinterferencefromnearbyequipment.Magneticeldsaroundother

devices,suchastransformers,appliances,uorescentlights,andothermonitorsmightbecausingthe

problem.Moveuorescentdesklightingoranyequipmentthatproducesmagneticeldsfurtherawayfrom

themonitor.Ifthisdoesnotcorrecttheproblem,dothefollowing:

1.Turnoffthemonitor.(Movingacolormonitorwhileitisturnedonmightcausescreendiscoloration.)

2.Adjusttheplacementofthemonitorandotherdevicessothattheyareatleast305mm(12inches)apart.

3.Turnonthemonitor.

Iftheseactionsdonotcorrecttheproblem,yourmonitormightneedservice.

Networkingproblems

Thefollowingarethemostcommonnetworkingproblems.Selectyournetworkingproblemfromthe

followinglist:

•“Ethernetproblems”onpage37

•“AwirelessLANproblem”onpage39

•“AwirelessWANproblem”onpage39

•“Bluetoothproblem”onpage39

Ethernetproblems

ForEthernetproblems,selectyoursymptomfromthefollowinglist:

•“Yourcomputercannotconnecttothenetwork”onpage37

•“Theadapterstopsworkingfornoapparentreason”onpage38

•“IfyourcomputerisaGigabitEthernetmodelandyouuseaspeedof1000Mbps,theconnectionfails

orerrorsoccur”onpage38

•“IfyourcomputerisaGigabitEthernetmodel,itcannotconnecttothenetworkat1000Mbps.Instead,

itconnectsat100Mbps”onpage38

Yourcomputercannotconnecttothenetwork

Symptom:Yourcomputercannotconnecttothenetwork.

Actions:Ensurethat:

•Thecableisinstalledproperly.

ThenetworkcablemustbesecurelyconnectedtoboththeEthernetconnectorofyourcomputerand

theRJ45connectorofthehub.Themaximumallowabledistancefromthecomputertohubis100

meters.Ifthecableisconnectedandthedistanceiswithinacceptablelimitsbuttheproblempersists,try

adifferentcable.

•Thecableisinstalledproperly.

•Youareusingthecorrectdevicedriver.

OntheWindows7operatingsystem,dothefollowing:

1.ClickStart➙ControlPanel.

Chapter7.Troubleshootinganddiagnostics37

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Lenovo M4350 Betriebsanweisung Seite 47