Win 8.1 update --> black display

ehsan · 02-17-2014, 02:40 PM

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.

02-17-2014, 02:40 PM	#11
ehsan Junior Member Join Date: Oct 2013 Posts: 6	Still no 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.