So many versions of HDMI since its release. I was hoping someone here could decipher between the different versions. My concern is that if I have a HDMI 1.1 receiver, 1.3 TV, 1.2 cable box will they all work together in harmony or does all equipment have to be the same version.

The reason I ask is because I want to purchase an older receiver that is only HDMI 1.1 and wasn't sure if it would work with newer HDMI version equipment and even older version equip.

I understand that the versions get better each time but wasn't sure if you could mix and match.

Example:

Plasma - 1.3
AVR - 1.1
DVD - 1.2
STB - 1.2

If I run all equipment thru the AVR is the output only as good as 1.1 even though some other equip has higher version?

Are all versions of HDMI campatible with each other?


Thanks Guys!

All the HDMI versions are designed to work together so it shouldn't be a problem to use a HDMI 1.1 AV receiver though it would prevent any of the HDMI 1.2/1.3 features from being used such as support for lossless audio bitstreams, Deep Color, xvYCC, and HDMI-CEC. There are also many minor updates that have been made as well and here is a list of changes made since the HDMI 1.1 specs:


1.3a 2006/11/10
Cable and Sink modifications for Type C (Table 4-20, 4.2.6)
Source termination recommendation (after Table 4-15)
Removed undershoot and max rise/fall time limits (4.2.4).
Modified slope of TP1 and TP2 eye diagrams (4.2.4, 4.2.5)
HDMI cable assembly AC-coupling support required (4.2.6)
CEC capacitance limits changed (4.2.10)
Valid range for RGB video quantization added (6.6)
Added audio sample rate exceptions for ARC (7.3, 7.3.1, 7.3.2)
Added Audio Rate Control Overview (7.11)

1.3 2006/06/22
Significant new features:
- Type C “Mini-Connector” (4.1.9.5, 4.1.9.6)
- Cable Categories 1 and 2 (4.2.6)
- Deep Color [4:4:4] (6.5, 8.3.2)
- Reference Cable Equalizer (4.2.3.2, 4.2.5, 4.2.6)
- Higher-speed single-link (4.1.2, 4.2.3,through 4.2.6, 8.3.2)
- xvYCC Enhanced Colorimetry (6.7.2.3)
- Gamut Metadata transmission (5.3.12, 6.7.3, Appendix E))
- DST audio format (5.3.10, 7.6.3)
- High-bitrate compressed audio formats (5.3.11, 7.2.4, 7.3.3, 7.6.2)
- Auto-Lipsync Correction feature (8.3.2, 8.9)
Updated normative reference from CEA-861-B to –D (1.2, throughout).
Updated Overview for new features (3)
Several minor editorial (throughout)

1.2a 2005/12/14
Changes to CEC supplement (see supplement for details)
Eliminated IOFF and made VOFF normative (4.2.4)
Changed CEC resistance to 5 ohms (4.2.10)
Clarified DVI device discrimination (8.3.3)
Several minor editorial (throughout)

1.2 2005/08/22
Removed limitations on Type A connector usage (4.1.2, 6.1)
Required new connector mechanical features, optional in 1.1 (4.1.9)
Required Sink support for future AC-coupled Sources (4.2.5)
Add note regarding maximum ratings of Sink (4.2.5)
Clarified Cable Assembly use of +5V Power (4.2.7)
Removed incorrect testing method for DDC capacitance (4.2.8)
Clarified when separate CEC lines on inputs are allowed (4.2.10)
Add maximum resistance spec for interconnected CEC line (4.2.10)
Remove CEC leakage current limit while in standby (4.2.10)
Relaxed YCBCR output requirement for RGB devices (6.2.3)
Added support for additional video formats (6.2.4, and 7.3.3, 8.2.1)
Corrected sample rate requirement from 1000 ppm to ±1000 ppm (7.2.6)
Clarified use of Speaker Allocation Data Block (7.4)
Added support for One Bit audio (7.9, and throughout)
Clarified exception for 640x480p (VGA) declaration in EDID (8.3.4)
Loosened requirement for duplicated DTD declarations (8.3.4)
Added recommendation for setting Supports_AI (9.2)
Clarified the behavior of Repeater to Sink with Supports_AI (9.3.2)
Clarified rule for DVD-Audio ACP Packet transmission (9.3.5)
Additional minor editorial (throughout)

I figured that you could mix versions of HDMI but just wanted to double check...THANKS!