Function and Use Cases of a VGA/DVI Dummy Plug . A VGA or DVI Dummy Plug is a small device that plugs into a VGA or DVI port and simulates the presence of a display. It doesnt output any image but sends standard EDID (Extended Display Identification Data) signals, tricking the operating system into recognizing a connected monitor. . Enable Dedicated GPU Output: Some computers or servers (especially headless setups) may not activate the GPU if no monitor is detected. A dummy plug allows the GPU to remain active by simulating a connected display.Enable High-Resolution Remote Desktop: Without a physical monitor, remote desktop sessions (e.g., Windows RDP or VNC) might default to low resolution. A dummy plug allows the system to offer higher resolutions like 1080p, improving usability.
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