Multiple monitors broken with Windows 10 upgrade

I have a HP ENVY 17-3200 (switchable graphics: Intel HD 4000 + AMD Radeon HD 7800M) with a triple monitor setup:

• Laptop's builtin LVDS 1080p display
• DisplayPort WQXGA display
• DisplayPort 1080p display

This configuration worked under Windows 7, 8, and 8.1. After upgrading to Windows 10, only 2 displays work. I have the latest drivers.

• Intel driver 10.18.10.4252
• AMD driver 15.7.1 (15.200.1062.1002)

I suspect this may have something to do with the fact the 4000's drivers only support WDDM 1.3 and the AMD drivers support WDDM 2.0.

How do I get all 3 monitors working again?

Solution 1:

I had the same problem. Also tried reinstalling my drivers, did not work.

This is what worked for me:

1. Right click "Start" and select "Control Panel" (Open classic Control Panel)
2. In the right corner -> View by: "Small Icons"
3. Display
4. Change Display Settings

Now you will see the traditional display configuration screen.

4. Select ("black/gray") extended monitor
5. Make sure "Multiple displays" is not set to "Disabled ..."
6. Select apply once done for all displays.

Done! :-)

I am not sure if I always used the correct terms; my computer isn't in English.

Solution 2:

Had a similar problem and got it fixed without reinstalling the drivers.

Basically, all I had to do, was figure out which graphics card is controlling each display and then setup that specific card in its own control panel.

My setup was:

• ThinkPad T420
  • Intel HD Graphics 3000
  • NVIDIA NVS 4200M
• 3 external monitors

First of all, basic Windows display settings may be useless.

So next, right click on desktop and select Graphic Properties to get the Intel Graphics Control Panel. There you can check if there are multiple displays listed and/or if you can activate some. For me, there was just one.

Finally, right click on desktop and select NVIDIA Control Panel. Again, check in the multiple displays section, how many displays are listed and if any can be reactivated. For me, there were two and one of them could be activated.

So that solved the problem for me. Just go through all the individual control panels for all the graphics cards and don't rely too much on default Windows display settings.

Substitute NVIDIA Control Center for ATI Catalyst Control Center when applicable.

Solution 3:

I had a similar problem with NVidia driver. After upgrading to Win 10, only one monitor was working but the NVidia graphics card was not recognized in device manager. I tried to uninstall the driver installed for Win 8.1 in vain. Uninstaller said it couldn't uninstall any Nvidia-related software without any information on the reason.

After repeating reboot a couple of times, I went to device manager and updated driver of the Nvidia graphics card using internet and rebooted again. That did it for me. All four monitors are working alright now. I didn't even have to reinstall CUDA toolkit for the new driver.

BTW, main reason I upgraded to Win 10 was that I can have %^&* Start menu back again. But to my surprise, the upgrading process was very smooth - I didn't even have to reinstall my software packages again - except for the display driver. mess.

Solution 4:

Try this...

Right click anywhere on your screen and select "Graphic Properties". When the Intel HD Graphics Control Panel comes up click the "Display" tab.

Right under Intel HD Graphics Control Panel is a "Display" with a dropdown arrow. Don't confuse it with the "Select Display". Click the dropdown and select "Multiple Displays". Then select your primary #1 and #2 monitor. Click apply and that should work.