Sometimes problems like this can be caused by new drivers that don’t work well with Windows 10. Rollback to an Older Version of the Driver To support multiple monitors, a USB adapter for an additional video output or a docking station is required. If your PC only has a video output, you can only support an external monitor. In this case, even a display divider does not help you expand the display on the second monitor, since it duplicates the same signal instead of generating two independent signals. If an external monitor can be connected but the second monitor is not recognized, the graphics card (also known as a graphics card) may not be able to support multiple monitors at the same time. If the problem persists, select Start, then select Power> Turn Off. To restart the device, select Start and then Power> Restart. Otherwise, try restarting your computer and choosing project mode again. Try the Win + P key combination and choose your preferred option.
The last, only the second screen deactivates the first screen / main screen and leaves only the second screen active. The Expand option expands the desktop and offers space for additional windows. With the “Duplicate” option you can “clone” the screen on the connected monitor, monitor or secondary projector. There are usually four four options: PC screen only, duplication, expansion and only second screen. You can access and switch from one external monitor to another and then use multiple monitors. This way you can select (or change) the display mode. Use the Hardware Troubleshooter to Fix Connection Problems with External Monitorsįirst try a Windows key (Win key) + a key combination P.Rollback to an Older Version of the Driver.