2.Icannotplaybackvideosontheexternalmonitorbutcanplaythembackonthecomputer
monitor.
SomecomputersdonotsupporttheCertifiedOutputProtectionProtocol(COPP),andyouwillnotbe
abletoplaybacktheprotectedvideosontheexternalmonitorconnectedtothedock.
Toplaybackvideosontheexternalmonitor,youcanconnecttheexternalmonitortotheVGAorDP
connectoronyourcomputer,andextendthedisplaytotheexternalmonitor.Formoreinformationabout
configuringthedisplaysettings,seeChapter4“Workingwiththedock”onpage9
.
3.Theimagesontheexternalmonitorflutter.
Checkthedisplayresolutionsettingofthecomputerandensurethattheresolutionissupportedby
thedock.
4.Theimagesontheexternalmonitorarenotincorrectcolors.
Checkthecolorqualityoftheexternalmonitorandadjustthecolortothecorrectcolor.See“Settingthe
colorqualityoftheexternalmonitor”onpage12.
5.ThecomputercanplaybackWebflashes.However,whenIdragthewindowtotheexternal
monitorandmaximizetheplaybackwindow,theplaybackstops.
Tosolvetheproblem,updateyourAdobeFlashPlayertothelatestversion.
6.Theexternalmonitordisplayisblank,ortheimagesontheexternalmonitorflutter.
Connectoneortwoexternalmonitorsatatime.Itisnotrecommendedthatyouconnectthreeexternal
monitors.
Audio
IcannothearanythingthroughmycomputerspeakersorIcannotusetheaudioconnectorsonthe
computer.
Bydefault,ThinkPadandotherLenovocomputersusetheheadsetandmicrophonecomboconnectoron
thedockanddisablebuilt-inaudioconnectorswhenthedockisconnected.
Toenablethebuilt-inaudioconnectorsonyourcomputer,dothefollowing:
1.Right-clicktheVolumeiconintheWindowsnotificationarea.
2.SelectSounds,andtheSoundwindowisdisplayed.
3.ClickthePlaybacktabtoselectabuilt-inaudiodevice,andthenclicktheRecordingtabtoselect
anotherbuilt-inaudiodevice.
See“Manuallyenablingtheheadsetandmicrophonecomboconnector”onpage11formoreinformation.
Notes:
•Toapplythenewsettings,restarttheapplicationsthatareusingtheaudiodevices.
•Thesettingsyouhaveadjustedwillbesaveduntilyouchangethesettingsnexttime.
16ThinkPadUSB-CDockUserGuide
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