Why is Windows 10 not set to full hd resolution?

Question

Video cards

There is a laptop running windows 10 with a 1366x768 display and HD 4000 graphics built into the i3-3110m, there is a 1080p TV, you need to connect via HDMI and set the resolution to 1920x1080 (well, or something like that, you can narrow the edges so that the picture fits completely, your own nuances) , you need this to test the adaptive layout of the site. When connected to a TV, I set the display of the picture only on the 2nd screen, that is, on TV. At first glance, everything is fine, the resolution displayed in the Intel Graphics program is 1920x1080.
But when I opened my site, I realized that the resolution was not at all full hd, I decided to check it and it turned out that the viewport had a completely different resolution:
In the windows 10 system settings I see the following:
I went to the Intel site, installed older drivers, but nothing has changed, I connected another laptop under windows 7 and with nvidia ion graphics, it displays normal full hd.
What options do you see for solving this problem?
PS Win10 remains, there are no options. Another option is to try connecting via analog VGA (D-SUB), but there is no cable at hand.

Answer 1

turn on both displays through the standard Windows tool, expand these screens and see. Might be worth downloading the latest Intel drivers.