Device manager showing extra Generic Non-PnP Monitors
I also referenced this dated post: Dell laptop... This is for a Windows 10 Dell Precision Workstation. It has operated without issue for several years.
Thought I would ask in the event others have seen this in different ways since the post linked above was created.
My PC changed from Extended Display to Duplicate Display un-commanded. After that happened Device Manager showed 4 'Generic Non-PnP Monitors' and 1 'Generic PnP Monitor'. These manifest as shown below:
As I was trying to solve this yesterday, the system kept adding more of the 'Black' display icons to the Control Panel applet until I got up to 7 displays. I actually only have the laptop LCD and 2 external monitors.
When all else failed to resolve the issue (after consulting with the contracted tech support) I performed an image rollback to the previous day and the problem resolved, but only temporarily. This morning it did another un-commanded change to Duplicate Display mode and added the generic monitors back in. As soon as I switched back to Extended Display mode the following showed in the applet:
In addition to any suggestions, I'd like to ask if anyone can concur or rebut the following:
Since I reloaded the image and it was initially OK, then did the un-commanded display mode change, I draw the conclusion this is not an OS problem, but rather a hardware issue.
Solution 1:
I'm certain the 2 responses by Mr_Moneybags and solomon219 are legitimate solutions for those situations and should be useful for those in similar contexts. That last post reminded me that I should post what eventually solved my problem.
The Dell Precision Workstation BIOS settings has a menu for Video with a submenu for Switchable Graphics. In that submenu is a checkbox for 'Enable Switchable Graphics'. Mine was checked on; I needed to check it off.
After that, the extra monitors immediately disappeared and have not returned and the Device Manager display was corrected as well.
Solution 2:
I had the same problem :( Seems to be a bug in the latest Intel Driver. For me the solution was downgrading the driver one version so it still was officially supported by Windows 10, but also still had an Intel Driver installed.
I installed Intel® Graphics Driver 15.40.25.4463 for Windows® 10. (06/17/2016) from here. Intel Control Panel works perfectly, and the extra monitors are gone.
The full list of drivers is here
Intel® Graphics Driver 15.40.28.4501 for Windows® 10 (08/12/2016) did not work for me. The Intel Control Panel would not open (crashed right away) and I got 5 Generic-PNP monitors like you.
I have Windows 10 Version 1607.