Lenovo ThinkPad Edge E540 - Audio Problems

•Problem:TheExtenddesktopfunctiondoesnotwork.
Solution:EnabletheExtenddesktopfunctionbydoingthefollowing:
1.Connecttheexternalmonitortothemonitorconnector,andthenconnectthemonitortoanelectrical
outlet.
2.Turnontheexternalmonitorandthecomputer.
3.Right-clickonthedesktop,andclickScreenresolution.
4.ClicktheMonitor-2icon.
5.SelectExtendthesedisplaysformultipledisplays.
6.ClicktheMonitor-1icon(fortheprimarydisplay,thecomputerdisplay).
7.Settheresolutionfortheprimarydisplay.
8.ClicktheMonitor-2icon(fortheexternalmonitor).
9.Setthescreenresolutionforthesecondarydisplay.
10.Settherelativepositionofeachmonitorbydraggingitsicon.Youcansetthemonitorsinanyrelative
position,buttheiconsmusttoucheachother.
11.ClickOKtoapplythechanges.
Note:Tochangethecolorsettings,right-clickonthedesktop,andclickScreenresolution.Click
AdvancedSettings,selecttheMonitortab,thensetColors.
•Problem:IfyouusetheExtenddesktopfunction,youcannotsetahigherresolutionorhigherrefresh
rateonthesecondarydisplay.
Solution:Changetheresolutionandthecolordepthtolowersettingsfortheprimarydisplay.Refer
tothesolutiontotheaboveproblem.
•Problem:Displayswitchingdoesnotwork.
Solution:IfyouusetheExtenddesktopfunction,disableit,andchangethedisplayoutputlocation.If
aDVDmovieoravideoclipisplaying,stoptheplayback,closetheprogram,andthenchangethe
displayoutputlocation.
•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.Makesurethatthefollowingdeviceisenabledandconguredcorrectly:
138UserGuide