Dr HDMI — 1080p EDID Manager & HDMI Handshake Fixer

Black screen after standby? A projector that only syncs on the third try? A PC that reshuffles its desktop every time the AV receiver switches off? In most of these cases the video signal itself is fine. What goes wrong is the short conversation HDMI devices have before any picture appears: the source asks what the display can handle, the display answers with its EDID, and a Hot Plug Detect signal tells the source when to ask again. When that conversation is unstable, the picture is too.

Dr HDMI is HDfury's original answer to that problem. This compact adapter sits between your source and the rest of the HDMI chain and takes over the conversation. Instead of reacting to every receiver, splitter or display that switches on and off, the source reads one fixed, predictable EDID chosen on Dr HDMI. No software is needed for everyday use: pick a bank with the arrow buttons and the device does the rest.

How it works

Eight EDID banks are built in. Press ▲ or ▼, pause for about a second, and the selected bank becomes active. Dr HDMI then sends a Hot Plug Detect event of roughly two seconds, so the source re-reads the capabilities and reconfigures its output. The middle button copies the EDID of the connected display into bank 8 and activates it immediately: ideal when you want a source to keep seeing exactly the screen it works best with, even when that screen is off.

• Bank 1 – full capabilities, all 3D features enabled
• Bank 2 – full capabilities without 3D
• Bank 3 – limited to 1080i, no 3D
• Bank 4 – limited to 720p, no 3D: the safest first test when there is no picture
• Bank 5 – limited to 480/576p, no 3D, for older or critical equipment
• Banks 6 and 7 – your own EDID, programmed via Mini-USB with the Windows EDID Utility (factory default: same as bank 1)
• Bank 8 – a copy of the EDID of the connected display

Where Dr HDMI earns its place

• PC and HTPC: the graphics card keeps seeing the same display, so windows, resolution and audio output stop jumping around when the TV or receiver goes to standby.
• Home cinema with AV receiver and projector: a fixed EDID in front of the chain makes slow or unreliable sync easier to diagnose and often solves it outright.
• Splitters, switches and extenders: one shared profile that every connected display can handle, instead of the source guessing between different EDIDs.
• Older equipment: deliberately cap a source at 1080i, 720p or 480/576p when a converter or display cannot handle more.
• System integrators: a programmed EDID in bank 6 or 7 keeps an installation predictable, and the source output stays active even with no display connected.

For stubborn handshake problems there is one more trick: a small HEAC/ARC slide switch that disconnects or reconnects HDMI pin 14. Input equalisation and cable-loss compensation help on longer runs. Power comes from the HDMI connection itself; a USB power supply can be added when the source delivers too little.

Is this the right Dr HDMI for you?

This is the original HDMI 1.4a model, built for chains that stay within 1080p60, 1920×1200 (WUXGA) or 2K. Within those limits it does exactly the same job as its newer brothers, and it is the smallest of the three. It is not intended for 4K, HDR, 4K120, VRR or 8K. For 4K60 with HDR, Dolby Vision and LLDV up to 18 Gbps, the Dr HDMI 4K is the better fit; gaming at 4K120 with VRR and ALLM, or 8K, calls for the HDMI 2.1-based Dr HDMI 8K. A side-by-side comparison is on drhdmi.eu.

Also worth knowing: Dr HDMI manages EDID and HPD. It passes HDCP through unchanged, so it cannot make a display without HDCP support work with protected content, and it cannot repair a faulty cable or HDMI port.

Specifications

• HDMI: HDMI 1.4a, female HDMI input and output
• EDID: 8 banks – 5 factory presets, 2 user-programmable, 1 sink copy; extended EDID CEA-861, 256 bytes
• Video: single-link 225 MHz, 2.25 Gbps; 2K, WUXGA 1920×1200, 1080p60 with 12-bit Deep Color, x.v.Color
• Audio: Dolby TrueHD and DTS-HD Master Audio pass-through
• Pass-through: HDCP, CEC, Lip Sync
• Signal: input cable equalisation, cable-loss compensation up to 50 m*, +5V passed through the HDMI/DVI-D chain
• HPD: Hot Plug Detect reset on every bank change (about 2 seconds)
• Controls: ▲ / ▼ bank selection, middle button for sink EDID copy, 8 bank LEDs, HPD indicator
• Compatibility switch: HDMI pin 14 on/off for HEAC/ARC issues
• USB: Mini-USB-B for power, firmware updates and EDID programming (Windows)
• Power: from the HDMI connection or a USB power supply
• Emulation: works as HDMI/DVI-D emulator and repeater
• Compliance: HDCP, FCC, CE
• Dimensions: 60 × 40 × 20 mm, 50 g
• In the box: Dr HDMI, USB to Mini-USB cable (6 ft)

*The practical distance depends on resolution, cable quality and the complete chain.

Manual, downloads and support

Everything you need to get started and to solve problems is collected on the Dr HDMI knowledge base, available in 15 languages:

• User manual – connecting, bank selection, copying the display EDID, wiring diagrams and a setup checklist
• HDMI troubleshooting – no signal, standby problems, AVR, projector, PC and resolution issues
• No HDMI signal? – a fixed test order for black screens
• Downloads – firmware 2.1 with EDID Utility, the stand-alone EDID Utility and Silicon Labs USB drivers, including Windows 11
• Applications – PC/HTPC, home cinema, AV distribution and system integration
• EDID explained, HDMI handshake explained and Hot Plug Detect explained
• 2K, WUXGA and 1080p60 support – what fits within 225 MHz
• HDMI glossary – EDID, HPD, HDCP, DDC, CEC and more in plain language