Video will not play on my secondary monitor! :O

Is there any way to watch video on the secondary monitor? Because i enabled “Optimize for video” or whatever it is, but video just wont play on the second monitor. If i drag it to the first then it’ll work though…any help would be greatly appreciated. Thanks

Hi Daniel,

Thanks for posting! Sorry you’re seeing a problem here. Let’s get this figured out.

The “optimize for video” setting won’t help when there’s no playback - we recommend leaving that setting at its default of “off” – turning it “on” effectively turns on video interlacing, which looks bad with text and generally isn’t what people want. Can you switch it back to off?

Then let’s try to solve the video playback problem. We should be able to get it playing on the USB attached screen … but it’s important to mention that we always recommend playing video on your primary screen, so your framerate is not limited by USB.

Two questions:

  1. Can you say more about what system you’re on - make and model? (for a problem like this, we mostly will look up what GPU, and what version of Windows)
  2. Can you say what video playback application, and what content are you trying to play? (different apps use different methods for playback; and we’re also on the lookout for content protection problems that would blank the video when on the USB screen)

And two suggestions:

  1. Are you already on the latest DisplayLink driver 5.5 M1 (Dec 3, 2010)? If you’re not sure, just download and upgrade from here:…
  2. If you’re on WIndows 7, is Windows Aero enabled (as you drag windows around, you should see that the titlebars are translucent)? If not, go to the Windows start menu and starting typing the word “transparency”. You should see a choice several items down called “Find and fix problems with transparency and other visual effects”. Can you click on that to run that wizard. Does it report any problems? If it it fixes a problem, check to see if the video playback problem is resolved.

Thanks for your patience while we work to get this figured out!

Thank you for responding so fast! I ran the “Find and fix problems with transparency and other visual effects” wizard and it fixed it right away. Thanks for your help. Oh, and you guys have one of the best customer service ive ever seen, thank you sooooo much.

Thank you, Daniel! We appreciate the kind words! Very glad to have you up and running.

I have the same problem. The main monitor can play the video. But the extended monitor through USB (I-O Data USB-RGB_D2) can not play the video. I am using Windows Vista Home Premium. I am using DisplayLinkManager6.1 and KMPlayer. I already disabled the “Optimize for video”. I can not find the “Find and fix problems with transparency and other visual effects” in Vista. The media and system information are given.

[Primary Filtergraph]
0) - DVD1_PART1.avi

    • AVI Splitter
    • KMP Audio Codec
    • KMP Video Codec
    • KMP Video Transform
    • KMP Audio Transform(Copy)
    • Video Mixing Renderer9(Windowed)
    • Default DirectSound Device

[Video Info]
Decoder - (DX50) KMP Video Codec(DivX5-libcodec.dll)
Format - Major Type: Video - Sub Type: YUY2
VideoInfo: YUY2 640X480, 16 bits
Format - Major Type: Video - Sub Type: YV12
VideoInfo: YV12 640X-480, 12 bits

[Audio Info]
Decoder - (0x55) KMP Audio Codec(MP3 Audio-libmad.dll)
Format - Major Type: Audio - Sub Type: PCM
WaveFormatEx: PCM(0x1), 24000 Hz, 16 Bits, 2 Ch

[Basic Video DSP]
Internal brightness: 100%

[Advanced Video DSP]
+Video Plugin

[Audio DSP]
+Pre amplification: Main: (100%)
+Auto Volume Control
+Audio Plugin

[Subtitle Settings]
+Draw Mode(Selected): Image
+Draw Mode(In use): On Overlay
+Text Rendering Method: Rasterizer
+Support HTML Tags(SMI)

+Version:,910,976, 2010-Nov-03 17:05:54)
+libcodec.dll: Exist(4,870,254, 2010-Oct-18 10:00:06)
+libmplay.dll: Exist(431,616, 2008-Jul-14 11:31:44)
+PProcDLL.dll: Exist(1,769,472, 2008-Feb-25 15:07:04)
+LibDTS.dll: Exist(178,174, 2008-Dec-05 16:42:20)
+liba52.dll: Exist(73,063, 2008-Dec-05 16:41:10)
+libfaad2.dll: Exist(335,155, 2008-Dec-05 16:37:06)
+libmad.dll: Exist(123,036, 2008-Dec-05 16:42:30)
+libmpeg2.dll: Exist(154,644, 2008-Dec-05 16:42:42)
+theora.dll: Exist(200,864, 2008-Dec-05 16:43:32)
+OggVorbis.dll: Exist(1,165,312, 2008-Feb-25 15:07:00)
+xviddll.dll: Exist(758,319, 2008-Dec-05 16:58:36)
+Old_QUARTZ.DLL: Exist(770,048, 2008-Feb-25 15:07:00)
+AboutDll.dll: Exist(105,472, 2005-Oct-03 14:12:18)
+DTView.dll: Exist(104,448, 2008-Feb-25 15:04:36)
+MPlayer.dll: Missed
+ImLoader.dll: Exist(856,064, 2008-Feb-25 15:05:22)

[File Info]

Complete name : C:\Users\Azim\Desktop\MAV_BK1_DVD01_PARTA1.avi
Format : AVI
Format/Info : Audio Video Interleave
File size : 299 MiB
Duration : 49mn 42s
Overall bit rate : 841 Kbps
Video #0
ID : 0
Format : MPEG-4 Visual
Format settings, BVOP : Yes
Format settings, QPel : No
Format settings, GMC : No warppoints
Format settings, Matrix : Default (H.263)
Muxing mode : Packed bitstream
Codec ID : DX50
Codec ID/Hint : DivX 5
Duration : 49mn 42s
Bit rate : 781 Kbps
Width : 640 pixels
Height : 480 pixels
Display aspect ratio : 4:3
Frame rate : 30.000 fps
Resolution : 24 bits
Colorimetry : 4:2:0
Scan type : Progressive
Bits/(Pixel*Frame) : 0.085
Stream size : 278 MiB (93%)
Writing library : DivX 6.8.4
Audio #1
ID : 1
Format : MPEG Audio
Format version : Version 2
Format profile : Layer 3
Codec ID : 55
Codec ID/Hint : MP3
Duration : 49mn 42s
Bit rate mode : Constant
Bit rate : 56.0 Kbps
Channel(s) : 2 channels
Sampling rate : 24.0 KHz
Resolution : 16 bits
Stream size : 19.9 MiB (7%)
Alignment : Split accross interleaves
Interleave, duration : 1000 ms (30.00 video frames)

[System Info]

CPU 0: 1995MHz, Intel® Core™2 Duo CPU T5750 @ 2.00GHz, x86 Family 6 Model 15 Stepping 13
CPU 1: 1995MHz, Intel® Core™2 Duo CPU T5750 @ 2.00GHz, x86 Family 6 Model 15 Stepping 13
OS: Windows NT Home Edition(Version 6.0 Build 6002) Service Pack 2
Video: Mobile Intel® 965 Express Chipset Family

DirectX: 9.0c(
Memory: All: 2,097,152 KB, Available: 1,153,000 KB, Used: 45%
CodePage: 932, Charset:1
Instruction: MMX MMX2 SSE SSE2 SSE3 64Bits