Display apparatus for automatically changing screen setting and control method thereof

A display apparatus comprising:

• at least one memory storing instructions;
• a first display;
• a communication interface;
• and
• at least one processor operatively connected with the at least one memory and the first display and configured to control the display apparatus, wherein the at least one processor is configured to execute the instructions to:
• based on identifying that the display apparatus is connected with a second display apparatus, identify a past connection history with the second display apparatus and first screen setting information corresponding to the past connection history, stored in the at least one memory;
• based on receiving second screen setting information of a second display in the second display apparatus through the communication interface, compare the first screen setting information and the second screen setting information;
• based on identifying that the first screen setting information and the second screen setting information are different as a result of the comparing, control the first display to display a message requesting to select one of the first screen setting information or the second screen setting information;
• and
• change a screen setting of the display based on selected screen setting information.