New
#1
Windows 10 not detecting 2nd monitor but it did before.
I have a new Lenovo AIO that came with Windows 10. From the start, it successfully detected a second monitor connected by HDMI. Yesterday I disconnected the second monitor in order to move to a new location. Now Windows is not detecting the second monitor. I've disconnected and re-connected the cable and re-booted but to no avail. In device manager it shows that I have the latest update for the display driver. Any ideas?