For example, a laptop that supports Thunderbolt 4,a 3840 x 2160 display,a 1920 x 1080 display.
When the laptop is connected to an external display, 3840 x 2160 or 1920 x 1080 can be achieved;However, when two monitors are connected to the laptop at the same time, both monitors become 1920 x 1080.
This problem will reduce the performance of the monitor and cannot meet the user experience.
For this problem, the technician gives a solution that you can solve by the upgrade.