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General discussion

HP Display Link Adapters

by tylersmiller Jan 19, 2012 11:40AM PST

Hey all. I've got a user that has a laptop with two external HP monitors. One monitor is connected via VGA connection to the laptop - the other is using an HP Display Link adapter over VGA and/or DVI. The screen that is connected to the Display Link adapter keeps stalling. He will move Internet Explorer over to that screen, try to maximize the window, and it freezes, but if he moves another window, like Windows Explorer over to that screen on top of it then Internet Explorer will start to respond.

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3 Posts
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Does it just happen
by MarkFlax Forum moderator Jan 19, 2012 8:42PM PST

to Internet Explorer?

And just to give us the full picture, make and model of the laptop, does the user use all 3 displays, ie laptop, VGA, and VGA/DVI Link Adapter, and is the Desktop extended over all 3 displays?

Mark

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Re:
by tylersmiller Jan 20, 2012 3:35AM PST

Yes, just Internet Explorer.

Laptop is HP 6730b with Windows 7 64 bit. User uses all three screens and are extended. Right monitor is plugged into the VGA port directly. The left screen is plugged into the Display Link adapter via DVI.

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Interesting
by MarkFlax Forum moderator Jan 20, 2012 8:11AM PST

From your description I see the laptop in the middle with the Taskbar as the main monitor, and the externals left and right.

I just wonder if this could be a screen resolution issue? For example if the LH monitor has a different screen resolution to the laptop display.

I've never used a DisplayLink adapter so I know little about it except it is USB connected. What happens if you try another USB port? - I see you tried that already.

Does this happen with all web pages, or when a web page is dynamic and updating? EG, If you had a static Home Page, does the display freeze when you rag then try to maximise the window?

Another test, drag the IE window to the LH display, don't maximise it. Does it become unresponsive? If it is left for a period then you maximise it, does that make any difference?

What I am thinking: USB is going to be slower than direct connection to the video card, and it is also CPU intensive, because it is not using the video card. So draqging it from the laptop display, (smaller resolution), to the larger display, (larger resolution), then maximising immediately, the CPU has to work harder to resize the window and re-render the web page.

I'm guessing!

Mark

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