As the output device of the computer, the monitor receives the video signal from the graphics card and displays the picture according to the resolution set by the graphics card. Simply put, the resolution that the display can support is prefabricated in the chip of the video board inside the display at the time of production. As an output device of the computer, the monitor will automatically match the resolution set by the graphics card according to the resolution it can support. When the resolution of the graphics card is set higher than the resolution supported by the display, the display will prompt that it is out of the display range and the screen will be black.
Therefore, the resolution of the display cannot be manually adjusted. It just automatically matches the resolution requirements of the graphics card for display.
If you have any questions, you can go to the special section of cool open community to find the relevant information of smart TV. Some tutorials may be helpful to you.