Windows 10: Using TV as 2nd display for laptop ONLY, changes scaling/ size?

Right now i have my screen mirrored, when i do 2nd display only the start menu and everything gets bigger and when i go to the display settings none of the scaling options are available, my default is 250% and i set a custom scale to 250% so that the screen remains the same when i do 2nd display only

This affects a game i am playing xcom 2, there is an arrow in the options menu to return to the main menu and its pretty much not visible for me to click, the text on the right and left sides of the screen is also cut off because the screen is zoomed in the game

When i mirror the screen, this is not an issue

:)

 

Using TV as 2nd display for laptop ONLY, changes scaling/ size?

Right now i have my screen mirrored, when i do 2nd display only the start menu and everything gets bigger and when i go to the display settings none of the scaling options are available, my default is 250% and i set a custom scale to 250% so that the screen remains the same when i do 2nd display only

This affects a game i am playing xcom 2, there is an arrow in the options menu to return to the main menu and its pretty much not visible for me to click, the text on the right and left sides of the screen is also cut off because the screen is zoomed in the game

When i mirror the screen, this is not an issue

 

Scaling issue on 32'' TV Display

I've read enough on overscan issues to confidently say that isn't the issue I'm having. I've gone through my Intel Graphics settings and NVIDAI control panel but haven't found anything useful (but I may have missed something). What I'm trying to do is replace
my two Lenovo monitors with a single TV display. The TV display would be an extended display. Everything fits on my screen; again this isn't overscan.

The best way I can explain the issue is as follows:

My normal laptop display is set to 150%. I connect a 32'' TV (HDMI) and set it as an extended display. The 2nd display is set to 100% but things are displayed with the same proportions as my laptop display (which is set to 150%). I'm using Visual Studio
to judge the proportions. If I switch to mirroring the display and scale down to 100%, things are the proportion I want on the 2nd display (the TV) but they're not clear enough to read. I'd like everything on both displays to be approximately the same perceived
size (a 1'' x 1'' box on one contains the same amount of stuff as a 1'' x 1'' box on the other) and be able to read whatever code I have up in Visual Studio.

I have the same results on 3 different 32'' TV's (a very old Sony, a 3-5 yr old Samsung, and an hour old Insignia). Everything looks great on my 55'' plasma. I'm returning the TV I got today because the age of the TV (more specifically, the tech inside the
TV) doesn't seem to be a factor.

Is there something I can do to get one of these 32'' TV's working the way I want?

Is this a pixel density issue?

Would I see better results from 40'' TV?

 

Windows 10 Scaling changes when connected a 2nd screen (TV) through HDMI

I have installed Windows 10 Pro on my PC.

Now i want to connect a TV by HDMI via the Graphics Card (Sapphire HD6450)

When i have done this the screen of the TV shows the exact as the PC screen before.

But the screen of the PC changes to desktop and the scaling is miniature small.

At that moment i cannot change the settings of the 2nd screen anymore....because of the small scaling.

When i detach the HDMI connection the PC screen returns to normal scaling, but the 2nd screen option has dissapeared.

What could be the problem?