intel_infoframes
displays HDMI and DisplayPort InfoFrame data
TLDR
Show HDMI infoframes
$ sudo intel_infoframes
Show specific port$ sudo intel_infoframes -p [HDMI-A-1]
Verbose output$ sudo intel_infoframes -v
SYNOPSIS
intel_infoframes [options]
DESCRIPTION
intel_infoframes displays HDMI and DisplayPort InfoFrame data. InfoFrames carry metadata about video format, audio, and HDCP.
The tool shows AVI, audio, and vendor-specific infoframes. Useful for debugging HDMI/DP handshake issues.
PARAMETERS
-p PORT
Specific display port.-v
Verbose output.--help
Display help information.
CAVEATS
Intel graphics only. Requires active display. Part of intel-gpu-tools.
HISTORY
intel_infoframes is part of intel-gpu-tools, created for debugging digital display connections on Intel graphics.
SEE ALSO
intel_panel_fitter(1), intel_reg_read(1), xrandr(1)