EDID is how displays communicate their capabilities to source devices. Understanding EDID is important when working with HDMI devices, scalers, and converters.

What It Does

When you connect an HDMI device to a display, the display sends EDID data describing its supported resolutions, refresh rates, color depths, and audio capabilities. The source device reads this and outputs a compatible format.

Why It Matters for Glitch Art

HDMI handshake issues are one of the most common problems in digital glitch setups. If a device can’t read EDID properly, you get no signal. EDID emulators and managers can solve this by presenting a fixed EDID to source devices regardless of what’s actually connected downstream.

Common Problems

• Splitters that don’t pass EDID correctly
• Converters that negotiate the wrong resolution
• KVM switches that reset EDID when switching
• Long cable runs that corrupt EDID data