How to display image on specific screen of raspberry pi 4?

Question

linux

Interested in the question. The new raspberry pi 4 has two hdmi outputs, how can I display the image programmatically on a specific screen. Let's say there are two mp4 files, output the first file through the first hdmi, the second one, respectively, through the second.

If we move away from the topic of raspberry, how can I display programs on different displays on a regular computer?

Answer 1

If we move away from the topic of raspberry, how can I display programs on different displays on a regular computer?

Output to different monitors is carried out by coordinates. For example, the first monitor has the coordinates of the upper left corner (0,0) and the dimensions are 1920x1080. Then the second monitor will have the coordinates of the upper left corner (1920.0). This is if its position is set to the right of the first monitor. The position of the monitors is configured in the graphical shell.

Answer 2

Try this https://askubuntu.com/questions/49797/how-to-launc...