Multi Display Adapter won't run video?


#1

Hi guys, brought a USB 2.0 UGA Multi-Display Adapter and can’t get video to display out of a data projector. Have it set up in a classroom off a brand new PC (win XP). Get video on display, change settings to mirror display and both windows media screens black out! Any hints pleeeeeeeese!


#2

Hi James,

Quick question to clarify - Are the desktop and other applications mirroring properly, but it’s a video playing in a Window (in Windows Media Player) that goes black?

If so, what content are you trying to play in media player?


#3

Hi Bermie, Yes all the other programs are fine, am playing DVDs through WMP, have also tried MoviePlayer Classis, Niro and a couple of others, all just black out the player screen.

thanks Jamesa


#4

Sorry Bernie, thought I was adding my image to my account


#5

Hi James,

Windows Media Player and many others default to a renderer which uses hardware acceleration and overlays that DisplayLink doesn’t support. By turning off overlays/hardware acceleration, this feature should work in mirror mode (although mirror mode does have some unique limitations).

The settings for this are in the Media Player Video Acceleration Settings:

!](https://sslproxy.getsatisfaction.com/sslproxy/SWhAdDNLMG5zdGFuVGlWenmLbJDGd3CABhjZermgcystANA4T6nd0pzV0fSzBRRGOd17A4b8ZLwi6-HESbXI0ohzfMiaJ08kJDtGfS9kNZjlJ3qghFf0y-v-eb1NcAJ3yqYkK9eSUGko8NMfh2eNJw==.jpg)](http://s3.amazonaws.com/satisfaction-production/s3_images/221632/vid_accel.jpg)

Make sure “use video mixing renderer” and “overlays” are both unchecked for the content that is having a problem.

See more from DisplayLink at http://www.displaylink.com/support/ti…

Please let us know if this resolves the problem.

And it’s a nice mug shot. :slight_smile: You should be able to can edit/delete that post and fix if you want.


#6

No luck!!! as soon as I turn on the unit ie: mirror the image the playing screen on WMP goes black. Issue is that I have 6 others throughout the school working fine on Media Player Clasic (older PCs) as I had this same problem BUT MPC now does the same thing on this machine. Will check out the web site.

thanks JamesJ


#7

Hi James - the ones that are working fine, are they using USB attached graphics? What got them working (or did they work all along)?

If you find a particular machine the appears to have a special problem - it is may be a problem specific to the type of graphics controller (Intel/nVidia/ATI) on the system. If the problem reproduces on just one system - what is the graphics controller?

Thanks – and thanks for checking your setup against DisplayLink’s forums and information. We’ll figure this out and see if there’s an easy workaround …


#8