EDID and capabilities

EDID flags

The Automix override flags

Automix asks your sinks what they can do and mixes the answers. The flags are how you overrule that answer for the parts you care about, without hand-building an EDID of your own.

An EDID flag is an override applied on top of a computed EDID. A fixed EDID table is a complete description written in advance, whereas a mixed EDID is generated from whatever happens to be connected at the moment. A flag forces one capability into that result, or out of it, whether the connected equipment supports it or not.

They exist because mixing is honest and honesty is often unhelpful. Combining two sinks gives you what both agree on, which is the lowest common denominator. The classic case is a television that is stereo and an AVR that handles full sound, both connected at once: depending on the algorithm the mixed EDID reports stereo, and the source dutifully sends stereo down a chain that could have carried the whole soundtrack.

The fourteen flags on the HDfury Diva

AUTOMIX is one of the five EDID modes in the EDID section, and the flags appear once it is selected. They fall into four groups: audio, HDR, colour and Dolby Vision. All of them are also reachable over IR, IP and RS232, so a flag change can be built into a control system macro rather than clicked by hand.

2.0 Stereo, 5.1 Multi, 7.1 Full

Force the mixed EDID to present stereo, 5.1 multi-channel or full 7.1 sound. The IP command is set edid audio full.

TX0, TX1, AUDIO OUT

Force the audio capabilities of the sink at that particular output. AUDIO OUT is the one to reach for when your AVR is fed from the dedicated HDMI audio output.

HDR 10+, HLG, 2020/xvYCC

Force HDR10+ support, HLG support, or BT.2020 and xvYCC support. The commands are set edid hdr10 on, set edid hlg on and set edid bt2020 on.

no YCbCr, no 3D

Present no support for YCbCr, which is how you force RGB, and no support for 3D. The commands are set edid yuvremove on and set edid 3dremove on.

DV Force Metadata, DV Remove, DV Limit 300MHz

Force Dolby Vision support, remove it, or allow it only at 300MHz. The commands are set edid dv on, set edid dvremove on and set edid dvlimit on.

Algorithm first, then flags

The algorithm decides how the capabilities of the connected sinks are combined before your flags are applied, so it is the setting to get right first. The five are Min Mixed Capabilities, Max Audio with Min Video, TX0 Output Priority, TX1 Output Priority, and Max Audio with Max Video. The same five appear in the OLED menu under EDID Algo as 0-Normal, 1-Max Audio, Prio TX0, Prio TX1 and 4-Max All, and the IP command is set edidalgo 4. Minimum mixed capabilities keeps every sink happy; a priority algorithm lets one output win when one display matters more.

All glossary terms