Win 8.1 update --> black display

[Carousel]

Hello. Are there any senior moderators / Displaylink folks out there knowing when an update may be coming? I have been checking every now and then to see if the latest DisplayLink and Nvidia updates are compatible. I would
reactive my Nvidia display adapter and still have all screens. BUT this would be lost once the PC was rebooted.

Another Nvidia update came down on 30th November. And this does not seem compatible at all. Not only did I lose the extra screens but my base Windows 8.1 setup got all messed up... No start screen for one. And no more taskbar icons either. I resorted to manually activating control panel utilities via Windows-R and finally got everything back... with the Nvidia display adapter deactivated again.

[luiset83]

I've posted about this a few times on different threads... in the meantime until they release new drivers that fix this issue sometime this month supposedly, try downgrading to 7.4M0 and see if it fixes the issue:

http://displaylink.com/support/sla.php?fileid=98

I personally have 327.23 drivers on my Toshiba P50 laptop upgraded to Windows 8.1 with NVIDIA GT740m and Intel HD graphics and 7.4M0 with no issues. I tried upgrading to 7.4M2 and it broke my system in the same black monitors manner.

[JamesH]

Originally Posted by Carousel

Hello. Are there any senior moderators / Displaylink folks out there knowing when an update may be coming? I have been checking every now and then to see if the latest DisplayLink and Nvidia updates are compatible. I would
reactive my Nvidia display adapter and still have all screens. BUT this would be lost once the PC was rebooted.

Another Nvidia update came down on 30th November. And this does not seem compatible at all. Not only did I lose the extra screens but my base Windows 8.1 setup got all messed up... No start screen for one. And no more taskbar icons either. I resorted to manually activating control panel utilities via Windows-R and finally got everything back... with the Nvidia display adapter deactivated again.

Hi,

This should be fixed in the next release due out early December.

Thanks,
James

[ehsan]

After waiting 4 months for a fix I went and bought a new usb-->hdmi adapter - uga usb3... and gess what... it also uses DisplayLink and thus do not work.

Is there really no way of using the DisplayLink adaptors with a high end laptop on an updated windows?

[Carousel]

Hello. Well there was no joy in December. But there were finally some updates in January that solved the problem. May well have been on the Nvidea side. I do not know. But there was also just a Displaylink update and all is still working fine: graphics card is on and I have three screens (including the laptop's). I have even run a fourth screen at the same time, sending a movie to the widescreen TV in the room using XBMC. Try clicking for updates some.

[ehsan]

Thanks for the reply.
I have now spend another 2 hours removing all traces of the nvidia gt 750m drivers and displaylink drivers trying to make a clean install of both.

Here are my conclusions

Without the Nvidia card the displaylink works fine.
With nvidia drivers from september displaylink works as well.

Displaylink 7.5 does not play well with recent nvidia drivers... not 332.21 and not the beta 334.67

When DL is connected you can not install new nvidia drivers. It is possible if I remove the DL usb-hdmi adaptor first.

If I deactivate my nvidia driver (in device settings) after boot and let DL do its magic and then reactivate nvidia drivers again they work! Until the next boot. It keeps working even when I put the computer to sleep/hybernate or if I physicly remove and reinsert the usb-hdmi dongel. But when restarting the computer again it does not work.

It seems like the nvidia drivers _if loaded first_ prevent the DL drivers to do their work.

You mentioned that it works on your system. What version of DL and Nvidia drivers are you using?

Any help would be appreciated.

[Carousel]

Checking Device Manager, looks like my NVIDIA driver is not so new: NVIDIA GeForce GT 750M version 9.18.13.2702 from 01-Sep-13. And there are no events showing after 24-Oct-13.

The DisplayLink Manager shows as version 7.5.52874.0 when I click on the DisplayLink notification icon.

But according to Device Manager, DisplayLink Display Adapter (4307) is version 7.5.52277.0 from 06-Nov-13. But there is a device configuration timestamp from 18-Jan-14, which as I recollect was about when everything started working again.

And according to Device Manager, the DisplayLink Dual Screen Video Dock Display Adapter is version 7.4.53134.0 from 13-Dec-13. For events, 18-Jan-14 shows. But so does 15-Feb-14 for driver service added and device installed. I assume this relates to the update message I saw last week.

Hardware-wise the laptop is an Acer V7-482PG-6662. I am using this with an Anker Dual Display Universal Docking Station attached via USB 3.0. When the PC boots to the Win 8.1 logon screen, there is a quick flash and then solid background colour shows on the two attached widescreens (one attached via HDMI-to-DVI cable and one via DVI-to-DVI cable). I log in and all screens work fine. The attached screens used to go black or all flashy if the NVIDIA was already engaged at logon. It was possible to turn the NVIDIA on after logging on though. But the problem would reappear on rebooting as I gather you've experienced...

[ehsan]

Thanks for your help.
OK, it seems that the key is to roll back the nvidia drivers to september 2013 (there are a couple of updates after that). Thats good enough for me now but really I think Displaylink should fix this issue.