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06-22-2015, 03:34 PM | #1 |
Junior Member
Join Date: Jun 2015
Posts: 7
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Asus mb168b+ works, but only partially in full HD
I have a strange issue with my Lenovo Thinkpad T440s and Asus mb168b+ external monitor in windows 8.1 x64. It works perfectly in any resolution up to the native full hd. In the full hd it also works until I move some more involved window on the screen. in this case it goes black immediately. If I wait some time and do not move the mouse, it sometimes lights again. But when I move the mouse, it goes dark again. It does not look like it disconnects from the usb, since I do not hear the windows sound for this event. It looks more like it needs a lot of time to process the picture.
What I tried: installed the newest driver from Displaylink , newest driver for Intel HD, disabling discrete Nvidia Card in Control Panel (I have Nvidia Optimus in the laptop, no possibility to disable it through Bios). I've lost a whole day on it, but still no success. What else can I try? Would powered USB hub help? Shorter usb cables? Any other ideas? Need your help! |
06-22-2015, 03:56 PM | #2 |
Senior Member
Join Date: Jan 2012
Posts: 1,523
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Hi,
I'd definitely recommend trying an external mains powered USB hub. Also if this came with a USB 'Y' cable please try connecting both ends of that to separate USB ports on your PC / usb hub. You can rule out Optimus by disabling the Nvidia card in Device Manager. Some further items to try can be found here: http://support.displaylink.com/knowl...from-repeatedl James |
06-22-2015, 05:05 PM | #3 | |
Junior Member
Join Date: Jun 2015
Posts: 7
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06-22-2015, 05:27 PM | #4 | |
Junior Member
Join Date: Jun 2015
Posts: 7
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06-24-2015, 09:02 PM | #5 |
Junior Member
Join Date: Jun 2015
Posts: 7
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I have bought the Y-cable and tried it. No success. I have also tried to connect one of the usb ends into 5V adapter, no change. I think it is not a power problem. Looks more like it is a faulty hardware or some software conflict. Here is my data gathered using your tool, could you please look into it? May be it helps to identify the problem?
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06-24-2015, 10:21 PM | #6 |
Junior Member
Join Date: Jun 2015
Posts: 7
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Update: Just tried it on an older laptop with Windows XP, works with the latest driver from displaylink without any problem. I am not sure if the laptop has usb 3.0, may be 2.0 only. So I guess it is not a hardware problem, rather some software incompatibility ... do not know what else to try.
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07-06-2015, 08:21 AM | #7 |
Member
Join Date: Feb 2015
Posts: 51
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Hi Osvit,
can I ask you to: 1. set value LargeScreenBoostCapable to "false" under HKEY_LOCAL_MACHINE\SOFTWARE\DisplayLink\Core\ in Windows Registry 2. Reboot computer 3. Check if issue still exists Please let me know about the results. BR, Kuba |
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