Lenovo ThinkPad USB 3.0 Ultra Dock User's Guide Page 40

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TheconnectionbetweenthevideocableandtheDVI-Ivideooutputconnector
Note:FortheconnectionoftheVGAconnector,ensurethattheDVI-ItoVGAadapteralsois
securedbythescrewsonbothsidesofit.
Iftheproblempersists,disconnectallconnectionsoftheprodock,anduninstalltheprodockdevice
driver.Then,reinstallthedevicedriverandtheprodock.
2.Y oucannotplaybackvideosontheexternalmonitorbutcanplaythembackonthenotebook
computermonitor.
SomenotebookcomputersdonotsupporttheCertifiedOutputProtectionProtocol(COPP),and
youwillnotbeabletoplaybacktheprotectedvideosontheexternalmonitorconnectedtothepro
dock.TheCorelWinDVD10programalsohaslimitationsonplayingbackvideosintheWindows
XPoperatingsystem.
Toplaybackvideosontheexternalmonitor,youcanconnecttheexternalmonitortotheVGAconnector
onyournotebookcomputer,andextendthedisplaytotheexternalmonitor.Formoreinformationabout
configuringthedisplaysettings,see“Workingwiththeprodockutility”onpage30
.
3.Theimagesontheexternalmonitorflutter.
Tosolvetheproblem,checkthefollowing:
EnsurethattheexternalmonitoriswellconnectedtotheDVI-Ivideooutputconnectoroftheprodock.
Checkthedisplayresolutionsettingofthenotebookcomputerandensurethattheresolutionis
supportedbytheprodock.
4.Theimagesontheexternalmonitorisnotincorrectcolors.
Tosolvetheproblem,dothefollowing:
a.EnsurethattheexternalmonitoriswellconnectedtotheDVI-Ivideooutputconnectorofthepro
dock.
b.Checkthedisplayresolutionsettingofthecomputerandensurethattheresolutionissupported
bytheprodock.
5.ThecomputercanplaybackWebflashes.However,whenyoudragthewindowtotheexternal
monitorandmaximizetheplaybackwindow,theplaybackstops.
Tosolvetheproblem,updateyourAdobeFlashPlayertothelatestversion.
6.Thevideofilescannotbeplayedsmoothlyonscreen.
EnsurethatyoustoprunningtheprogramwhichmayinfluencetheCPUperformanceduringvideo
playback.
Audio
Youcannothearanythingthroughyournotebookcomputerspeakersoryoucannotusetheaudio
connectorsonthenotebookcomputer.
Bydefault,ThinkPadandotherLenovo
®
notebookcomputersusetheheadsetandmicrophonecombo
connectorontheprodockanddisablebuilt-inaudioconnectorswhentheprodockisconnected.
36UserGuide
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