User Manual

ManualsBrandsLenovo ManualsComputers & AccessoriesThinkPad X240 12.5" Ultrabook Computer

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•Problem:Thescreenpositionontheexternalmonitorisincorrectwhenthatmonitorissetforahigh

resolution.

Solution:Sometimes,whenyouuseahighresolutionsuchas1600x1200,theimageisshiftedtoleftor

rightonthescreen.Tocorrectthis,rstmakesurethatyourexternalmonitorsupportsthedisplaymode

(theresolutionandtherefreshrate)thatyouhaveset.Ifitdoesnot,setadisplaymodethatthemonitor

supports.Ifitdoessupportthedisplaymodeyouhaveset,gotothesetupmenuforthemonitoritself

andadjustthesettingsthere.Usuallytheexternalmonitorhasbuttonsforaccesstothesetupmenu.For

details,seethedocumentationthatcomeswiththemonitor.

Audioproblems

•Problem:WaveorMIDIsounddoesnotplaycorrectly.

Solution:Makesurethatthebuilt-inaudiodeviceisconguredcorrectly.

1.OpenControlPanel.

2.ClickHardwareandSound.

3.ClickDeviceManager.Ifyouarepromptedforanadministratorpasswordorconrmation,typethe

passwordorprovideconrmation.

4.Double-clickSound,videoandgamecontrollers.

5.MakesurethattheRealtekHDAudiodriverisenabledandconguredcorrectly:

•Problem:Sounddoesnotcomefromaheadphoneoraspeaker,oryourcomputercannotrecordsounds.

Solution:Toswitchfromonedevicetoanother(forexample,fromaspeakertoaheadphone,orfrom

anexternalmicrophonetoabuilt-inmicrophone),dothefollowing:

1.OpenControlPanelandclickHardwareandSound.

2.ClicktheRealtekHDManagericon.

3.MakesurethatyouareinMULTI-STREAMmodeintheDeviceadvancedsettingswindow.

4.IntheVolumeMixerwindow,selectthedeviceyouwant-forexample,speakers.

5.Playanysoundviaamusicprogram(forexample,WindowsMediaPlayer).Makesurethatsound

comesfromspeakersnow.

6.Then,ifyouwouldliketoswitchtoaheadphone,closethemusicprogram.

7.GototheVolumeMixerwindow.Thenselectanotherdevice,whichisnowtheheadphone.

8.Playanysoundviathemusicprogram.Makesurethatsoundcomesfromaheadphoneattached

directlytothesystem.

Formoreinformation,refertothehelpinformationsystemofRealtekHDManager.

Note:IntheVolumeMixerwindowofRealtekHDManager,acheckmarkbytheentryforadevice,

suchasspeakersforaplaybackdevice,orabuilt-inmicrophoneforarecordingdevice,showsthat

thedevicehasbeenselected.

•Problem:Recordingsmadeusingthemicrophoneinputarenotloudenough.

Solution:MakesurethattheMicrophoneBoostfunctionisturnedonandsetbydoingthefollowing:

1.OpenControlPanelandclickHardwareandSound.

2.ClickHardwareandSound.

3.ClickSound.

4.ClicktheRecordingtabintheSoundwindow.

5.SelectMicrophone,andclickthePropertiesbutton.

6.ClicktheLevelstab,andmovetheMicrophoneBoostsliderupwards.

7.ClickOK.

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